Sélection de la langue

Search

Sommaire du brevet 1264487 

Énoncé de désistement de responsabilité concernant l'information provenant de tiers

Une partie des informations de ce site Web a été fournie par des sources externes. Le gouvernement du Canada n'assume aucune responsabilité concernant la précision, l'actualité ou la fiabilité des informations fournies par les sources externes. Les utilisateurs qui désirent employer cette information devraient consulter directement la source des informations. Le contenu fourni par les sources externes n'est pas assujetti aux exigences sur les langues officielles, la protection des renseignements personnels et l'accessibilité.

Disponibilité de l'Abrégé et des Revendications

L'apparition de différences dans le texte et l'image des Revendications et de l'Abrégé dépend du moment auquel le document est publié. Les textes des Revendications et de l'Abrégé sont affichés :

  • lorsque la demande peut être examinée par le public;
  • lorsque le brevet est émis (délivrance).
(12) Brevet: (11) CA 1264487
(21) Numéro de la demande: 468027
(54) Titre français: SYSTEME DE BRANCHEMENT DENUDEUR
(54) Titre anglais: COMPOSITION TERMINAL SYSTEM
Statut: Réputé périmé
Données bibliographiques
(52) Classification canadienne des brevets (CCB):
  • 339/27
(51) Classification internationale des brevets (CIB):
  • H01R 4/24 (2006.01)
  • H01R 4/48 (2006.01)
(72) Inventeurs :
  • SHTUN, ANDREW (Canada)
  • MAY, ALBERT S. (Canada)
  • NORDBY, LEONARD R. (Canada)
(73) Titulaires :
  • SHTUN, ANDREW (Non disponible)
  • MAY, ALBERT S. (Non disponible)
  • NORDBY, LEONARD R. (Non disponible)
  • WESTCAN ELECTRICAL MANUFACTURING INC. (Non disponible)
(71) Demandeurs :
(74) Agent: GIERCZAK, EUGENE J. A.
(74) Co-agent:
(45) Délivré: 1990-01-16
(22) Date de dépôt: 1984-11-16
Licence disponible: S.O.
(25) Langue des documents déposés: Anglais

Traité de coopération en matière de brevets (PCT): Non

(30) Données de priorité de la demande: S.O.

Abrégés

Abrégé anglais


Case 2920

COMPOSITE TERMINAL SYSTEM
ABSTRACT OF THE DISCLOSURE
An improved solderless connector has a
planar contactor body portion stamped out of brass
plate, being provided with a pair of resiliently
deformable contact ramps, each cooperating with a
fixed post portion to form adjacent connector slots,
the contact ramps providing a predetermined stripping
force diametrically of a conductor forced into the
slot. The contact ramps each serves as a locking cam,
to retain an inserted conductor in secured relation
within the respective slot. A plurality of contact
bodies are mounted across the face of a non-conductive
terminal block, each body being respectively inserted
within an individual retaining slot, and having an
insulating barrier interposed between adjacent
contacts. A plurality of tie-off posts extend from
one face of the terminal block, to facilitate
pre-assembly of conductors with respective contactor
slots, prior to pressing of the conductors into
contacting relation with the respective contactors.
Protruding leg portions extending from the terminal
block facilitate assembly thereof to a component such
as a ballast, serving also collectively as spacer feet
for positioning the ballast.

Revendications

Note : Les revendications sont présentées dans la langue officielle dans laquelle elles ont été soumises.


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

1. A contact member for a solderless connection, comprising a thin
resilient flat plate having a least one pair of extending elements defining an
open ended wire receiving slot, one said element comprising a cantilever
spring resiliently deflectable from said other element when a wire conductor
is inserted within said slot so as to provide a predetermined lateral force
acting against said wire conductor when inserted within the slot.

2. The connector as claimed in Claim 1, said cantilever spring having an
arcuate flank to provide a cam surface for retaining said inserted conductor
in secured relation within said slot.

3. The connector as claimed in Claim 1 having at least two said slots, to
provide in use an electrical interconnection between two wires inserted in
contact-making relation in respective ones of said slots.

4. The connector as claimed in Claim 1, including an electrically
non-conductive terminal block having a plurality of said contact members
inserted within slotted recesses of said block, and a plurality of projecting
post means adjacent said contact members for attachment thereto of a said wire
conductor in pre-positioned relation with a said slot.




5. The connector as claimed in Claim 4, said terminal block having at least
one protruding leg portion extending therefrom for attachment of said
connector to an electrical device.

6. The connector as claimed in Claim 5, in combination with said device,
wherein said device is a ballast.

7. The connector as claimed in Claim 1, Claim 2 or Claim 3, including a
plurality of projecting hook portions for anchoring said plate within a slot
located in an electrically non-conducting terminal block.

8. A contact member for a solderless connection, comprising a thin
resilient flat plate having first and second extending elements, said first
extending element having a first flank portion and second extending element
having a flank portion cantilevered from said second extending element and
converging towards said first flanking portion so as to define an open ended
convergent wire receiving slot, said second flank portion resiliently
deflectable from said first flank portion when a wire conductor is inserted
within said slot so as to provide a predetermined lateral force acting against
a wire conductor when inserted within said slot.

9. A contact member for a solderless connection, comprising a thin
resilient flat plate having a pair of spaced side pillar portions and a
central pillar portion disposed intermediate said side pillar portions wherein
said central pillar portion is spaced from said side pillar portions, said
central pillar portion including first flank means disposed adjacent each said




side pillar portions, each said side pillar portion including second flank
means cantilevered from each said side pillar portions and extending towards
said first flank means so as to define an open ended wire receiving slot, said
second flank means resiliently deflectable from said first flank means when a
wire conductor is inserted within said slot so as to provide a predetermined
lateral force acting against a wire conductor when inserted within said slot.





Description

Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.






Case 2920
-1-
COMPOSITE TERMI~AL SYSTEM
This invention is directed to an improved
solderless connector, and in particular to an improved
connector suitable for use with electrical devices, in
particular ballasts, and to the improved ballast thus
produced.
Solderless wire connectors are well known,
as can be seen in Canadian Patent Nos. 891,711, issued
` January 25, 1972 to Enright et al, 892,782, issued
~` ~ 10 February 8, 1972 to Driscol and 939,033, issued
December 25, 1973 to Serin.
The present invention provides an improved
solderless connector, together with a connector
mounting block suited ~or use with electrical devices,
in particular ballastsj and to a method for using the
improved connector.
One existing method for producing lighting
ballasts has included the provision of metallic studs
mounted on insulators, to which the ballast
connections were secured by soldering~ In accordance
with~the present invention, the improved solderless
connection is provided with a resilient flat plate
having at least one pair of extending elements
defining an open ended~wire receiving slot, one of the
elements comprising a cantilever spring to provide in
use a predetarmined lateral face acting against a
: ~ :

~" :

, "~
.,

` :
, . .. .
.: ~

~:~6~
Case 2920
--2
wire conductor when pushed laterally into the slot~
The finish of the edges of the brass sheet stock
obtained when the contact elemen-t is stamped out is
sufficiently sharp to penetrate through insulatiny
material covering the surface of a wire conductor, to
ensure ob-~aining a reliable electrical contact when
the wire is pushed laterally into the slot. The shape
of the cantilever spring member, in addition to
facilitating the penetration of insulating material,
also deforms elastically upon insertion of a wire to
the bottom of the slot so as to trap the wire within
the slot, to substantially preclude accidental
withdrawal of the wire from the slot. The geometry of
the element allows use of wires selected from a range
of sizes.
The provision of contact elements having
two, three or more slots in each element permits the
insertion of single wires into a slot, with the body
- of the contact providing electrical interconnection
; 20 between adjacent individual wires.
; rrhe present invention further provides an
electrically insulating mounting block to receive a
plurality of solderless contact elements in inserted
relation thereinu The contact elements are
self-anchoring, each having a plurality of projecting
hook portions to engage the mounting block in
attaching relation thereto.
rrhe mounting block herein disclosed includes
a plurality of winding posts to receive wire
conductors in wound relation thereabout, thus
permittiny selected wires each to be initially
positioned in preliminary entered relation with a
selected contact element slot.
he mounting block is further provided with
locating means to facilitate assembly of the blocks in
secured relation with an electrlcal device such as a

..


Case 2920
--3--
ballast. The locating means includes an external
shoulder portion and spacer nibs for precise
positioning of the mountiny block on the device, and
at least one protruding leg for attaching the block to
the device, as by clinching a struck out tab from the
; device in holding relation with the protruding leg.
The mounting block leg portions, in the
preferred embodiment include extended foot portions
that serve collectively to support the device. Thus,
in the case of a ballast, the extended foot portions
collectively maintain the ballast windings in
suspended relation positioned clear of adjacent casing
or other components until final potting or
; encapsulation is completed.
The respective structural characteristics of
the subject invention lend themselves to low cost mass
production, with the electrical contact elements being
stamped rom selected conducting material, the
mountiny block having slots therein precisely sized to
~0 receive the contact elements within individual
isolated slots being injection molded, preferably from
a suitable polycarbonate resin. The elements further
lend themselves to facilitated assembly, with minimal
hand operations such as positioning the connector
elements in entered relation in their slots and tying
the individual conductors to selected ones of the
winding posts so as to position each wire in aligned
relation with a desired one of the connector slots.
In selecting the contact element material
from sheet stock such as phosphor bronze, berylium
copper or brass, phosphor bronze possesses the
required strength and elasticity at a more acceptable
cost than berylium copper, which is a superior
conductor. The lower elasticity of brass
:
limits the extent of allowable elastic deformation,
requiring More precise sizing of the conductor wires
.

.~

~L87
Case 2920
--4--
that may be used therewith. Elastic deformation of a
cantilever portion of the contact element, upon
insertion of a conductor within the slot thereof, has
amounted to a 15 deflection, while the generation of
flattened side surfaces in the conductor has led to a
change in cross section area o~ about 15~ This local
change in wire area serves to anchor the wire against
pull-out forces.
The forcing home of connectors into their
slots in the mounting block, and ~orcing the
positioned wires transversely into the respective
connector slots can then be automated, to eliminate
hand labour to a significant extent, with consequent
labour cost reduction.
Certain embodiments of the invention are
described, reference being made to the accompanying
drawings wherein:
Figure 1 is a magnified view, in front
elevation of the subject solderless connector contact
- 20 member and a portion of a terminal block;
Figure 2 is a front elevational view of a
terminal block in accordance with the invention;
~ Figure 3 is a front elevational view of a
;~ terminal block in assembled relation with a ballast;
-~ 25 E'igure 4 is a plan view of the ballast, and
Figure 5 is a section at 5-5 of Figure 2~
Referring to Figure 1, a contact member 10
for a solderless connector is stamped from cold drawn
brass or phosphor bronze stock, having a central
30 pillar 12 and at least two side pillars 14, 160 Each
of the side pillars 14, 16 has a cantilevered blade
~ portion 18 attached at the top to a leg portion 20.
- The flanks 22 of the blade portions 18, together with
the flanks 24 o~ the pillar 12 are curved to ~orm a
convergent slit within which a wire W (shown in
phantom) may be ~orced causing the blade portions 18


,

,
. ` ~,
,~

Case 2920
--5--
to deflect. The shape of blade portions 18 is such
that as the wire l~ ls forced inwardly towards the root
of the slit 17 causing progressive bencling o-f the
blade portion 18, the upper end of blade portion 1~,
being stiffer, tends to return towards its original
position -thereby trapping the wire W within the slit
17.
The contact member 10 has a pair of opposed
hook end portions 28 which embed themselves in the
adjacent slot wall of terminal block 30, within which
slots the contact members 10 are inserted.
Turning to Figure 3, a ballast 40,
comprising a stack of laminations 41 having a coil 45
set therein is provided at each end thereof with a
terminal block 30. Each terminal block 30 has a pair
of indented post members 44 by which the block 30 is
secured to the ballast by way oE crirnp 48 into the
post indentation. The crimps 48 are struck from an
end frame portion of the ballast 40 and clenched in
gripping relation over the post members 44. The block
30 is firmly seated on the top of the core structure
of the ballast 40, whereby the remote ends of post
members 44 extending beneath the level of the other
positions of the ballast 40 serve as
supporting feet therefor, prior to encapsulation of
the ballast. The outer wing portions 29 of the
terminal blocks 30 extend above the level of the other
components of the ballast 40 so as to afford a
protective envelope to the respective components,
permitting inversion of the ballast in supported
relation by wing portions 29, if desired.
Referring to Figures 1, 2 and 5, the
ter~inal block 30 has a crenelated intermediate body
portion 32, the individual crenelations 34 each having
a slot 37 therethrough within which a respective

.
:,~



., :
,

Case 2g20
--6--
contact memb~r 10 is inserted.
The opposed hook portions 2~3 of the members
10 engage in hooking relation with the ends of the
respective slots 37, to preclude withdrawal of each
contact me~ber 10 from its respective slot 37.
The spaces between adjoining crenelations 34
provide access for transverse insertion of individual
wires downwardly into the convergent slit provided by
blade portions 18 and pillar 12 of the contact member
10 10 .
As sho~n in Figures 2, 4 and 5, a number of
L-shaped tie-off posts 36 extend from the front of the
terminal block 30, each tie-off post 36 having a
horizontally extending leg portion 37' and an
upstanding foot portion 38.
In use, enamelled wires W (39) are laid into
the respective slits 17 and held in position by
winding the free end of the wire about an adjacent
tie-off post 36.
With all of the wires thus positioned in the
`~ entrance to their respective slits 17, although not
forced downwardly into contact-making relation within
the slits 17, and being held in such entered relation
~i:
by having the free end of each wire wrapped about an
appropriately positioned tie-off post 36 so as to
maintain the respective wires in positioned relation,
the ballast 40 may then be positioned in a mechanical
pressing device, for applying transverse force
downwardly against the wires 39, so as to cause
stripping of the varnish insulation simultaneously as
the wires are displaced into the bottom of their
respective slits 17. It wiIl be understood that this
mechanization step is optional, and manual positioning
~ of wires 39 into slits 17 may be used.

:
''

, ~,



.. . .

Dessin représentatif
Une figure unique qui représente un dessin illustrant l'invention.
États administratifs

Pour une meilleure compréhension de l'état de la demande ou brevet qui figure sur cette page, la rubrique Mise en garde , et les descriptions de Brevet , États administratifs , Taxes périodiques et Historique des paiements devraient être consultées.

États administratifs

Titre Date
Date de délivrance prévu 1990-01-16
(22) Dépôt 1984-11-16
(45) Délivré 1990-01-16
Réputé périmé 1993-07-17

Historique d'abandonnement

Il n'y a pas d'historique d'abandonnement

Historique des paiements

Type de taxes Anniversaire Échéance Montant payé Date payée
Le dépôt d'une demande de brevet 0,00 $ 1984-11-16
Enregistrement de documents 0,00 $ 1987-09-08
Enregistrement de documents 0,00 $ 1987-09-08
Taxe de maintien en état - brevet - ancienne loi 2 1992-01-16 50,00 $ 1992-01-16
Titulaires au dossier

Les titulaires actuels et antérieures au dossier sont affichés en ordre alphabétique.

Titulaires actuels au dossier
SHTUN, ANDREW
MAY, ALBERT S.
NORDBY, LEONARD R.
WESTCAN ELECTRICAL MANUFACTURING INC.
Titulaires antérieures au dossier
CANADIAN GENERAL ELECTRIC COMPANY LIMITED
Les propriétaires antérieurs qui ne figurent pas dans la liste des « Propriétaires au dossier » apparaîtront dans d'autres documents au dossier.
Documents

Pour visionner les fichiers sélectionnés, entrer le code reCAPTCHA :



Pour visualiser une image, cliquer sur un lien dans la colonne description du document. Pour télécharger l'image (les images), cliquer l'une ou plusieurs cases à cocher dans la première colonne et ensuite cliquer sur le bouton "Télécharger sélection en format PDF (archive Zip)" ou le bouton "Télécharger sélection (en un fichier PDF fusionné)".

Liste des documents de brevet publiés et non publiés sur la BDBC .

Si vous avez des difficultés à accéder au contenu, veuillez communiquer avec le Centre de services à la clientèle au 1-866-997-1936, ou envoyer un courriel au Centre de service à la clientèle de l'OPIC.


Description du
Document 
Date
(yyyy-mm-dd) 
Nombre de pages   Taille de l'image (Ko) 
Dessins représentatifs 2001-05-03 1 11
Dessins 1993-09-15 2 63
Revendications 1993-09-15 3 115
Abrégé 1993-09-15 1 39
Page couverture 1993-09-15 1 26
Description 1993-09-15 6 293
Taxes 1992-01-16 1 35