Language selection

Search

Patent 1303363 Summary

Third-party information liability

Some of the information on this Web page has been provided by external sources. The Government of Canada is not responsible for the accuracy, reliability or currency of the information supplied by external sources. Users wishing to rely upon this information should consult directly with the source of the information. Content provided by external sources is not subject to official languages, privacy and accessibility requirements.

Claims and Abstract availability

Any discrepancies in the text and image of the Claims and Abstract are due to differing posting times. Text of the Claims and Abstract are posted:

  • At the time the application is open to public inspection;
  • At the time of issue of the patent (grant).
(12) Patent: (11) CA 1303363
(21) Application Number: 578744
(54) English Title: WEEDER FOR INLAND WATERWAYS
(54) French Title: EXTIRPATEUR POUR VOIES NAVIGABLES INTERIEURS
Status: Deemed expired
Bibliographic Data
(52) Canadian Patent Classification (CPC):
  • 56/7
(51) International Patent Classification (IPC):
  • A01D 44/00 (2006.01)
(72) Inventors :
  • KRIGER, EARLE (United States of America)
(73) Owners :
  • KRIGER, EARLE (United States of America)
(71) Applicants :
(74) Agent: GOUDREAU GAGE DUBUC
(74) Associate agent:
(45) Issued: 1992-06-16
(22) Filed Date: 1988-09-28
Availability of licence: N/A
(25) Language of filing: English

Patent Cooperation Treaty (PCT): No

(30) Application Priority Data:
Application No. Country/Territory Date
238,060 United States of America 1988-08-30

Abstracts

English Abstract




WEEDER FOR INLAND WATERWAYS
ABSTRACT OF THE DISCLOSURE


A weeder capable of removing large and small sized weeds
from inland waterways is arranged for towing off the back of
a row boat as well as for manul operation. The weeder is in
the form of a rectangular expanded metal section pivotally
attached to towing ropes at opposite ends. The sides of the
expanded metal section are sheared to form a V-groove or slot
configuration for trapping the weeds along the bed of the
waterway where the roots meet the weed stalk. The expanded
metal perforations allow the weeds to be carried to the
surface of the water while allowing the water to escape
between the perforations. One side of the expanded metal
section is provided with an additional expanded metal section
to form V-grooves of smaller width to remove the smaller
weeds.


Claims

Note: Claims are shown in the official language in which they were submitted.



The embodiments of the invention in which an
exclusive property or privilege is claimed are defined as
follows:

1. A weeder for engaging and removing aquatic
weeds from the underwater soil at the bottom of waterways
comprising:
a body for pulling weeds, said body being substantially
planar and having at least one edge and a plurality of
openings therethrough spaced from said edge,
means attached to said body for causing said body to move
through water with said body and said edge substantially
parallel and at the surface of the underwater soil, and
means at said edge of said body comprising V-grooves for
engaging the portions of weeds above said soil and for
removing the roots of the engaged weeds from said soil as said
body is moved by said moving means,
said openings being throughout said body and permitting
water to pass through said body when said body and weeds
engaged by said V-grooves are moved upwardly from the said
underwater soil surface.
2. The weeder of Claim 1, and a second body
attached to said first mentioned body, said second body being
of lesser width than said first body and having an edge
thereof overlying said edge of said first body, said edge of
said second body having V-grooves of different width than said
V-grooves of said first body.
3. The weeder of Claim 2, said V-grooves of said
second body being of lesser width than said V-grooves of said
first body.






4, The weeder of Claim 1 wherein said means
attached to said body comprise swivel hooks.
5. The weeder of Claim 4, wherein said body is
rectangular and said swivel hooks are located at all four
opposing corner of said body.
6. The weeder of Claim 1, and further comprising
reinforcement bar means secured to said body for adding
strength and weight thereto.
7. The weeder of Claim 1 wherein said means
attached to said body comprise tow ropes.
8. The weeder of Claim 7, wherein said tow ropes
have connectors at one end for attaching to said attachment
means.
9. The weeder of Claim 7 and further comprising
spring means attached to said tow ropes for assisting in
lifting said body from said bottom.
10. The weeder of Claim 1, wherein said means
attached to said body comprises a handle.
11. The weeder of Claim 10 and means for securing
said handle to said body in any one of a plurality of angular
positions.
12. The weeder of Claim 11, wherein said body is
rectangular with longitudinal edges and said securing means
comprises means for securing said handle so as to be
positioned over either of said edges of said body.







13. The weeder of Claim 1 wherein said body is of
expanded metal.
14. A weeder for inland waterways comprising:
a first rectangular substantially planar body of expanded
metal having a plurality of first diamond shaped openings
throughout said body, said body having a first set of V-
grooves of a first width on said one edge, said first V-
grooves being arranged for removing first sized weeds from a
bottom of a waterway;
a second rectangular body of expanded metal having a
plurality of second diamond-shaped openings throughout said
second body, having a width less than the width of said first
body and having V-grooves at the edges thereof having a width
smaller than and overlying the V-grooves of said first body
for removing second sized weeds from said waterway bottom,
said second sized weeds being smaller than said first sized
weeds; and
means at opposing ends of said first body for moving said
bodies substantially horizontally along a bottom of the
waterways;
said first and second openings permitting water to pass
through said body when said body and weeds removed thereby are
moved to the surface of the water.





15. A weeder for inland waterways comprising:
a first rectangular body of expanded metal of
predetermined length and width and having a plurality of first
diamond-shaped openings, said first body at one edge thereof
having V-grooves of a first width for removing first sized
weeds from a bottom of a waterway;
a second rectangular body of expanded metal having a
plurality of second diamond-shaped openings attached to one
surface of said first body, said second diamond-shaped
openings being of smaller size than said first diamond-shaped
openings; and
said second rectangular body having an edge overlying
said one edge of said first body and having at said edge V-
grooves of a second width, said second V-grooves being of a
smaller width than the width of said first V-grooves.


11


16. A method for removing weeds from soil
underlying inland waterways comprising the steps of:
providing a substantially planar body having an edge with
a plurality of V-grooves extending therealong and openings
through said body;
moving said body along a bottom of an inland waterway
with said body and said edge adjacent the said waterway bottom
and engaging and holding weeds thereon by said V-grooves at a
junction of said weeds with said bottom and removing the roots
of said weeds from said soil by pulling on said weeds by said
movement of said body; and
lifting said body together with said weeds, including
said roots, through said water with water passing through at
least some of said openings, whereby said weeds remain on said
body for subsequent removal therefrom and disposal.


12



17. A weeder for engaging and removing aquatic
weeds from the underwater soil at the bottom of waterways
comprising:
a body for pulling weeds, said body having at least one
edge and a plurality of openings therethrough spaced from said
edge,
means attached to said body for causing said body to move
through water with said body and said edge substantially
parallel to and at the surface of the underwater soil, and
means at said edge of said body comprising V-grooves for
engaging the portions of weeds above said soil and for
removing the roots of the engaged weeds from said soil as said
body is moved by said moving means,
said body being constructed to provide, rearwardly of
said edge, minimal resistance to being pulled through the
water with said edge at the front of said body,
said openings being substantially throughout said body
for permitting water to pass through said body when said body
and weeds engaged by said V-grooves are moved upwardly from
the said underwater soil surface.



13

Description

Note: Descriptions are shown in the official language in which they were submitted.


3~3

WE13DER FOR :tNLAND WATERWAYS

BACKGROUND OF THE INVENTION
Aquatlc weeds have long been a problem for persons
~nJoylng proper~y located on lnland lakes, ponds, and rivers.
The weeds grow uncontrolled to lengths in exces~ of ~everal
feet to interfere wlth ~wlmmlng and boatlng usag~.
Earlier attempts to remove such weeds from along the
shore out to some di~tance there~rom, have not heretofore
proven successful. Hand-operated cutting tool~ in the form of
slckles and hoe~ were limlted due to thQ poor vlslbllity
through the water when the water wa~ dl~turbed. The cut weeds
which float to the ~urfaGe are removed ln a separate operatlon
either by hand or by means of a rak2 or simllar tool. The cut
weeds whioh sink to the bottom regQnerate and form new growth.
Dredgers ln the form of chalns dragged along the water bed by
means of a row boat to trap the wa~d~ were not as e~ective as
tools that employed blade~ or blade-like edges to cut the
weed~.
U.S. Patent 4,375,~99 entltled ~Aquatlc Weeder" de~oribe~
a hand held weeder u~e~ul ~or cutting weed~ growing beneath
the surfac~ of quch lnland waterway~. The weeder i~ moved
back and forth to cut the w~eds ln ~hallow water~ and r~mova
them from the underwater 90il Yur~ca. The weed~ are later
gath~red at the ~urface and taken to ~he shore for dlsposal.
V.S. Patent DES. 190, 822 entltl~d ~Underwat~r W~ed
Cutter" ~hows a weeder device h~ving ~ plurallty of ~errat~d
blades along one surface or cutting weed~ from the und~r~at~r
~oll surfaee with a screen~ 0 lmpl~ment ~or catchlng the
weed~ and ~owlng the~ b~hlnd ~ bo~ r la~er dlspo~al.
The present lnv~ntion propo~e~ 1~ an underwa~er weed

~L3~3363
removal devlce that lg el~her hand-operated or boat-towad for
engaglng and holding the weed~ ~t the Juncture of thelr root
and qtalk assembly, removlng the root3 from the soil, and
dragging the root~ and ~talks, i.e., the entire weeds, to the
surface ln a Qingle operation.
SUMMARY OF THE INVENTION
The invention compri~ a ~lrst rectangular body of
expa~ded metal haviny rope-enga~ing swivels a~tached to the
opposlte corner~ ~hereof. A metal relnforcement bar ~g
positloned along the body, parallel to the longer slde~. An
addltional rectangular metal body of expanded matal of lesser
width than the first body 19 attach~d to the first body
between the metal relnforc~ment bar and a long$tudinal edge of
~he flrst body. The ed~ss of ~he expanded metal bodle
provide a flrst edge having V-grooves o~ a f$rst w~dth for
capturing larger weed~ and V-grcov~s of shorter wldth for
capturing smaller ~lzed weed~. A pivoted handle support can
be optlonally attached to the centsr of ~he support bar for
hand-operation.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 1~ an exploded per~pectlve view of a waterway
weeder in accordanc~ with the lnvention, wlth the component
part~ ln isometrlc proJection;
Figure 2 1~ a top perspactlve view of an alternate
embodiment of the weedar o~ Figur~ 1, wlth towing ropes
attached;
Fi~ure 2A i~ a top per~pec~ivQ view o~ a fur~her
embod~ment of the weeder o Flgure 1:
Figure 2B i~ a top persp~ctlve view of a ~urth~r
embodiment of the weeder of Figur~ 2A:
Flgure 3 is ~ top per~p~atlv~ vlew o~ ~n altern~te
embodiment of the weeder of Figur~ 1, wi~h a handle attached:



. ~ 2

~3~?3~3

Flgure 4 ~ a top perspec~lve v18w of an alternative
embodiment of the weeder depicted in Figure3 l and 2;
Flgure 5 i~ a p~rspective view of the weed~r of Figur~ 2
shown attached to the transom o a row boat; and
Flgure 6 19 a front per~pectlve vlew of the weeder
depicted ln Figure S belng wlthdrawn from the water.
DESCRIPTION OF T~E PREFERRED EM~ODIMENTS
The waterway weeder 10 1~ ~hown in Figure 1 in exploded
perspective, and compr~eQ a planar expanded metal body ll,
metal support bar 12 and a pla~ar expanded metal body 13. The
expanded metal bodies 11 and 13 have ~ plurallty of dlamond-
shaped openings 8 between elements 22 and 23, respectlvely.
When the element~ 2~, 23 are cut edgewlse, a corresponding
plurality of V-grooves 7 and 9 are defined along th~ cut edges
13A, and along edges llA and llB. The slgnlficance of the V-

groove~ 7 and 9 wlll be d~scrlbad below ln greater detail.
metal bar 12 form~d from a carbon teel composltion i3 on top
of the body 11 parallel to the edge~ llA, llB. The narrow
expanded mstal body 13 having a plurallty of V-grooves 7 along
one edge 13A i8 then attached to the bar 12 and ~o the body 11
by allgning llnk 22 in tha narrow chaln l~nk 13 and ln the
body with ~he ~hru-hole ~4 ln the ~uppor~ bar 12. The chain
bodle~ ~nd the bar 12 are fastened ~ogether by me~ns of bolt
18, washers 19, 20 and nut 21. Altornatlvely, body 11 and the
bar 12 can be placed over both ~odle~ 11 and 13 before
bolting. In high speed a~sembly operations, ~he narrow body
13 can be edg~-weld~d or brazed to body 11 a~ depicted at 6 ln
Figure 2 or example1 Four S-~haped ~wivel hook~ or rings 14
are at~ached to the four opposln~ corn~rs o th~ b~dy 11 to
~cilltate the a~a~en~ of ropes or cor~ 28 a~ o ~hown

ln Figur~ 2.
As ~hown in Figure 2, weed~r 10 is arranged fsr towin~ by

~3~33~53
the attachm~nt of two or more cords 2~ by means of connec~or
27 ~ttached to oppo~lte ends of th~ cord. In ths weeder 20,
the bar 12 can also be edge-welded or brazed to the body 11 a~
shown at 25 ln a hlgh speed automated assembly process. When
S the narrow body 13 19 attached to body 11, a plurality of
narrow V-grooves S are dafined along the composite edge
deined by ~he edge 13A of the narrow body 13 and the edge llA
of narrow body 11. ~he opposing sdge llB provide a plurallty
of larger V~grooves 9 for engagln~, holdlng and extractlng
larger-slzed weedq when the cord~ 28 are attached to swlvel
hooks 148 and the rake 10 1~ towed in the diractian indlcated
by arrow 8. When the cords 28 are at~ached to the oppo~ite
swlve}~, one of whlch i8 lndicated ~t 14A and the other
omitted for purpo~e~ o~ clarlty, and the rake 10 1 dragged in
the direction indlcated by arrow A along the underwater -~olid
surface, the smaller weeds are caught, held and pulled form
the soil by the narrower V-groove3 S.
A less expen~ive variation of the weeder o~ tha
inventlon, i~ provided by rake 10, hown ~n Figure 2A, which
comprl3es an expanded metal body 11 having V-groove~ 9 on
opposing sldes and 18 attached to the towlng rope~ 28 dlrectly
wlthout u~lng any typ~ of swivel hooks. A reinforclng bar 12
i~ attachad to the body 11 for added s~abllity and weight to
lnsure that it remains ln contact wlth the weed~ growlng along
Z5 the bed of the watsrway. The reln~orcing bar 12 which ad~
strength and welght ~o the b~dy ll or slnking lt to the
bottom underwater 9011 ~urfac~: however, bar 12 can be
~limlnated l the ~xpanded me~al o~ }~y 11 i~ o suicia~tly
heavy gauge.
~nother ~imple and in6xpen~ivo ~bod~ment o~ the w~eder
of the lnventlon i8 provlded by r~ke 10~ ~how~ ln Flyure 2B~
whereln an expa~ded metal ~ody 11 i8 directly welded as

~3~3;3~i~
lndicated at 16 to an expanded matal body 4 havlng cloqely
spaced element~ 15 to deflne a plurallty of narrow V-groove~
5 on one edge. A plurality o~ ragular sized V-grooves 9 are
formed on body 11 on the oppo~lte sld~ therefrom.
Baslde~ ~elng towed behlnd a row boa~ such as lndicated
at 43 ln Fi~ure 5 for example, the weeder lO i9 also capable
of being hand-operated as best ~ean by referring to Figure 3
and Figure 3A. A two part arcuate bracket 29 i~ attached to
the support bar 12 ~y bol~s 50 through plate 34 of one part of
la bracket 29. One end of the other part of bracket 29 1~
lnternally threaded a~ indicat~d a~ 51 to accept the threaded
end 52 of a handle 33. The handlQ 33 comprlses a plurallty of
sectlon-q 33', 33" whlch are lolned together to provlde any
desired length.
lS A5 shown ln Flgure 3A, ~ post 38 extends upwardly from
the plate 34, and has a hole 53 ~urrounded by a knurled
surface: the other part of the brac~et 29 ha~ a plate 37 which
~s also knurled for engagement with the knurled surface of the
post 38; a hole 54 thereln 1~ aligned wi~h ~he hole 53 and
post 38, 30 that a bolt 36 may bo pa4sed through tham~ and
secured by wln~ nut 32 and wa~her 35. A~ will be appasent,
thl~ permlt~ the securing of the handle 33 at any de~lred
anglQ, 80 that the angle of tha handle 33 can be adJusted to
various angle~ aq lndlcated in phantom at 33A and itY
d~reation can be rsversed as indicated at 33~. This allows
the angle of the weeder to be adJu~ted with re~pect to ~h~
oper~tor a~ well as the bottom of the waterway which in turn
provide~ more po~ltiYa drag on tha weed roots. Thl~ al80
allows the weeder to be dr~wn ln the ~ dlrection ~or a~ample
when the handl~ 18 l~c~ted at ~o~ltion 33A and ln the
dlrection B when the operatln~ h~ndle 33 i5 located at 33B.
The opera~or can flrs~ remove the l~rger wee~ and then changa





IL3~ 3i3
the posltion of the handle 33 and retrace his St~p3 to remove
the s~aller weeds.
The weeder 10 is depicted in Figurs 4 w~th a pair of
heavy compression spring~ 39, ~lmllar to those used wlth
overhead garage door~, attached lntermedlate the S-~haped
swivel hooks 14 and the cordY 28. One spring en~ 40 i9
attached directly to the S-shaped hook 14 and the other spring
end 41 i~ attached to th~ connector 27 attached to the end of
the cordq 28. The hQavy expansion springs 39 ~ssl~t in
1~ llftlng the weeder upwards through the water. ~he water
resl~tance to the w~eder, when loaded wlth weeds, cau~Q~ the
springs to elongate when the weeder ls llfted from the ~ottom
of the water. The energy ~tored ln the springY alternately
releases to asslqt the operator during upward motlon of the
weeder toward the water surface.
The towlng operatlon of the weeder 10 1~ shown ln Flgure
5 whereln the weeder is towed by a row hoat 43 by mean~ of the
palr of cords 28 that are attached to a corresponding pair of
hook.Q 44 fastened to the boat tran~om 56. The weeder 1~ drawn
along the underwater soil bed 47 ln a horizontal dlrection to
capture tha weed~ 46 at the ~unctlon of the 8011 47 with the
~atar 4~ and to hold and remo~ th~m.
The multl-functional f~atura3 of the weed~r 10 can be
seen by referr~ng now to Figure 6 wherein th~ weeder is
deplcted carrylng a plurali~y of w~ed~ 46 of the type
consisting of ~talks 42 and root~ 48. When the wePder 1~
drawn along the underwater soil ~urfaca, the ~talks 42 become
captured within th~ V-gr~oves 9 such ~hat they lay along tha
top 3urfacs 55 of tha weeder. When ~h~ weader 18 re~oved fro~
ths water by mean3 of cord~ 28, the water d~plcted a~ droplets
49 drains through th~ openln~ 8 whlls the we~ds 46 ramaln
entrapped on ths top ~urfac~

~3~33~
An affectlve mean~ for removlng weed~ from lnland
waterway~ has hsreln been descrlbed whareby the weed~ are
engaged at the ~unction of the 9011 with the water and are
held and removed by mean of a slmple, eff~cient and
economical device. The weeds are removed in a ~ingle
operat~on without addltional equipment or additional gathering
step~.
The claims and the speclficatlon dsscribe the lnvention
presented, and the term~ that are employed in the claim~ draw
lQ thelr meanlng from the use of such term~ in the speciflcation.
Some terms employed ln the prior art may be broader ln meaning
than speclfically employad herein. Whenever there i8 a
question between the broader definition of such term a~ u~ed
in the prior art and the more spa~iflc use of the term herein,
the more specific meanlng ia meant.





Representative Drawing
A single figure which represents the drawing illustrating the invention.
Administrative Status

For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Administrative Status , Maintenance Fee  and Payment History  should be consulted.

Administrative Status

Title Date
Forecasted Issue Date 1992-06-16
(22) Filed 1988-09-28
(45) Issued 1992-06-16
Deemed Expired 2002-06-17

Abandonment History

There is no abandonment history.

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Application Fee $0.00 1988-09-28
Maintenance Fee - Patent - Old Act 2 1994-06-16 $50.00 1994-06-08
Maintenance Fee - Patent - Old Act 3 1995-06-16 $50.00 1995-05-30
Maintenance Fee - Patent - Old Act 4 1996-06-17 $50.00 1996-06-10
Maintenance Fee - Patent - Old Act 5 1997-06-16 $75.00 1997-06-10
Maintenance Fee - Patent - Old Act 6 1998-06-16 $75.00 1998-06-03
Maintenance Fee - Patent - Old Act 7 1999-06-16 $75.00 1999-06-02
Maintenance Fee - Patent - Old Act 8 2000-06-16 $75.00 2000-06-02
Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
KRIGER, EARLE
Past Owners on Record
None
Past Owners that do not appear in the "Owners on Record" listing will appear in other documentation within the application.
Documents

To view selected files, please enter reCAPTCHA code :



To view images, click a link in the Document Description column. To download the documents, select one or more checkboxes in the first column and then click the "Download Selected in PDF format (Zip Archive)" or the "Download Selected as Single PDF" button.

List of published and non-published patent-specific documents on the CPD .

If you have any difficulty accessing content, you can call the Client Service Centre at 1-866-997-1936 or send them an e-mail at CIPO Client Service Centre.


Document
Description 
Date
(yyyy-mm-dd) 
Number of pages   Size of Image (KB) 
Drawings 1993-11-01 6 270
Claims 1993-11-01 6 187
Abstract 1993-11-01 1 29
Cover Page 1993-11-01 1 14
Description 1993-11-01 7 342
Representative Drawing 2000-08-07 1 48
Fees 2000-06-02 1 36
Fees 1997-06-10 1 44
Fees 1998-06-03 1 50
Fees 1999-06-02 1 47
Maintenance Fee Payment 1996-06-10 1 37
Maintenance Fee Payment 1995-05-30 1 28
Maintenance Fee Payment 1994-06-08 1 28
Maintenance Fee Payment 1996-06-14 1 61