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Patent 1103777 Summary

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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:

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(12) Patent: (11) CA 1103777
(21) Application Number: 321559
(54) English Title: BACK UP ALARM SYSTEM
(54) French Title: SYSTEME D'ALARME DE SECOURS
Status: Expired
Bibliographic Data
(52) Canadian Patent Classification (CPC):
  • 340/124
(51) International Patent Classification (IPC):
  • G08B 13/22 (2006.01)
  • G08B 29/00 (2006.01)
(72) Inventors :
  • FOWLER, EUGENE W. (United States of America)
(73) Owners :
  • FOWLER, EUGENE W. (Not Available)
(71) Applicants :
(74) Agent: MARKS & CLERK
(74) Associate agent:
(45) Issued: 1981-06-23
(22) Filed Date: 1979-02-15
Availability of licence: Yes
(25) Language of filing: English

Patent Cooperation Treaty (PCT): No

(30) Application Priority Data: None

Abstracts

English Abstract


Abstract of the Disclosure:
Electrically conductive leads electrically
connect a relay, a source of electrical energy and a
radio transmitter for transmitting radio signals in a
back up circuit. The relay is electrically connected
to the electric circuit of a burglar alarm system.
When an electrical conductor of the burglar alarm
system is cut or short circuited, the relay closes the
back up circuit to actuate the transmitter to transmit
radio signals indicating that an electrical conductor
of the burglar alarm circuit has been cut or short-
circuited.


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 back up alarm system for a burglar alarm
system utilizing an electric circuit having electrical
conductors for operating a burglar alarm under predetermined
circumstances, said back up alarm system comprising
relay means electrically connected to the
electric circuit of a burglar alarm system having
electrical conductors;
a source of electrical energy
a radio transmitter for transmitting radio
signals; and
electrically conductive leads electrically
connecting the relay means, the source of electrical energy
and the radio transmitter in a back up circuit with the
burglar alarm circuit in a manner whereby the relay means
is deenergized and maintains the relay means normally
open as long as the burglar alarm system is in operative
deenergized condition and when electrical conductors of
the burglar alarm circuit are short-circuited, the relay
means closes the back up circuit to actuate the transmitter
to transmit radio signals indicating that an electrical
conductor of the burglar alarm circuit has been short-
circuited.





2. A back up alarm system as claimed in claim 1,
further comprising a reset switch electrically connected
to the relay means for manually resetting the back up
circuit.


3. A back up alarm system as claimed in claim 1,
further comprising a radio receiver for receiving signals
transmitted by the transmitter thereby indicating an
alarm condition.



Description

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


~37~7~




B ~qround of the Invention:


The p.resent invention relates to a bac~ up alarm
system. More particularly, the invention relates to a
back up alarm system for a burglar alarm system utilizing
an electric circuit.
The embodiments of FIGS. 1 to 4 a.re disclosed in
the United States Patent No. 4,012,728, issued to the
present inventor on Marc~ 15, 1977.
Alarm systemis are disclosed in United States
Patent No. 3,204,222, issued in August, 1965 ko Montroy
et al, United States Patent .No. 3,688,256, issued in
August, 1972 to D'Ausilio et al, United States Patent NoO
3,703,714, issued in November, 1972 to Andrews and United
States Patent No. 3,893,069, issued in July, 1975 to Mason.
O~jects of the in~ention are to provide a back up
ala.rm system for a burgla.r alarm sys-tem, w~ich bac~ u~
alarm system functions more effectively and more rapidly
than a silent burgla.r alarm system to provide complete

p.rotection from burglars, since the back up alarm system
functions efficiently, effectively and reliably by wireless
transmission to wa.rn of t~e cutting of an elect.rical con-
ductor of a burglar alarm system circuit and to warn of -the
short-circuiting of electrical conductors of a burglar
alarm system such as, for example, by wire cutters.


~J13~77



Brief_Description of the Drawinqs:

In order that the invention may be readily
carried into effect, it will now be described with
reference to the accompanying drawings, wherein:
; FIG. 1 is a block diagram illustrating the
basic back up alarm system of the invention;
FIG, 2 iS a block diagram of a first embodiment
of the bacX up alarm system of the invention;
FIGo 3 is a block diagram of a second embodiment
of the back up alarm system of the invention; :. :
' ~
FIGo 4 is a block diagram of a third embodiment
~ of the back up alarm system of the invention;
:;; FIG~ 5 i5 a block diagram of a fourth embodiment
; of the back up alarm system of the invention; and .
: FIGo 6 is a block diagram of a fifth embodiment
of the back up alarm system of the invention~
In the FIGS~ the same components are identified
;:
by the same reference numerals.

Detailed Descri~tion of the _nvention:

The back up alarm system of the invention is for
a burglar alarm system utilizing an electric circuit 1 ~.
haviny electrical conductors (not shown in the FIGSo)o
`,
:'`,; '
.~

'~`
.~ ~
.





T'he back up alarm system of the invention com-
prises a loek in relay 2 electrically connected to the
electric circuit 1 of t'he burglar alar~ system. The relay
2 may comprise any suitable relay having an energizing
winding and a relay switch or relay contacts controlled in
position by such energizing winding. In the embodiments of
FIGS~ 20 3 and 4, the energizing winding of the relay 2 is
energized by the eireuit 1 of the burglar alarm and maintains
the relay eontaets normal]y open, so that as long as the
burglar alarm cireuit is elosed and the burglary alarm
system is in operative condition, t'he relay contacts are
open. As soon as a eonductor of the burglar alarm circuit
1 of the embodiments of FIGSo 2~ 3 and 4 is cut by a burglar,
or due to any other circumstance, so that the burglar alarm
system beeomes inoperative, the relay energizing winding
of the relay 2 eloses the relay contacts t'hereof, and the
relay energizing winding remains deenergized until it i.s
reset by a reset switc~, ~ereinafter describedO
In t'he embodiments of FIGSo 5 and 6, the energizing
winding of the relay 2 is deenergized, as is t'he eircuit 1
of the burglar alarm and said cireuit maintains the relay
contacts normally open, so t~at as long as the burglar
alarm eircuit remains deenergized and the burglar alaxm
system is in operative condition, the relay c~ntacts are
openO As soon as a conductor of the burglar alarm


'
~'
:

.

~3~7~ ~



circuit 1 o~ t~e embodiments o FIGS. 5 and 6 is
energized or short-circuited, by a burglar, so that the
burglar alarm system becomesinoperative, the relay energiz-
ing winding of the relay 2 closes the relay contacts there-
of, and the relay energizing winding remains energized
until it is reset by the reset switch.
The back up alarm system further comprises
electrically conductive leads 3, 4 and 5 electrically
: connecting the lock in relay 2, a source of electrical
. 10 energy 6 of any suitable type such as, Eor example, a
: battery, and a radio transmitter 7 of any suitable type ~or
transmitting radio signals, in a back up circuit with t~e
burglar alarm circuit, as shown in FIG. lo
In the embodiments of FIGSo 2, 3 and 4, w~en an
electrical conductor of the burglar alarm circuit 1 is
cut, the relay energizing winding of the lock in relay 2
becomes deenergized and permits the relay contacts thereof
~ to close thereby closing the back up circuit to actuate the ~ :~
:~ transmitter 7. When the transmitter 7 of the embodiments
. 20 of FIGS. 2, 3 and 4 is actuatedj it transmits radio signals
indicating that an electrical conductor o~ the burglar
alarm circuit 1 has been cuto It also activates an
~ audible alarm such as, for example, a buzzer 8.
; In the embodiments of FIGS. 5 and 6, when an
~- electrical conductor of the burglar alarm circuit 1 is
~- short-circuited, the relay energizing winding of t~e


i

377~7



lock in relay 2 becomas energiæed and permits t~e relay
contacts t~ereof to close thereby closing the back up
circuit to actuate the transmitter 7. When the trans-
mitter 7 of the embodiments o FIGS. 5 and 6 is actuated,
it transmits radio si.gnals indicat.ing that an elec-trical
conductor of the burglar alarm circuit 1 has been short-
circuited. It also activates the buzzer 8.
A reset switch 9 is electrically connected to the
lock in relay 2 ~or manually resetting the back up circu.it,
in the embodiments of FIGS. 2, 3~ 5 and 6. An additional
reset switch 9', which is normally open, is provided in
shunt with the battery 6, in the embodiment of FIG. 6.
; - A radio receiver 10 of any suitable known type
(FIGSo 2 and 6) receives signals transmitted by the
transmitter 7 thereby indicating an alarm condition at
such receiver.
The embodiments of FIGS. 3 and 4 include a
normally open control switch lock 11 and a key 12 which
fits a nor~ally~cclosed control switcho In the embodiment
; 20 of FIG. 6, the normally closed control switch 12l com-
.~ bines a key arrangement w~ich controls a normally open
:~ alarm switch or switches 18 and is connected to the loc~
... ~ in relay 2 and the battery 6. The key arrangement is
unlocked for operation by a key, as in the embodiments of
FIGS. 3 and 4O In the embodiment of FIG. 5, the normally
closed control switch 12l controls the electric circuit 1.

:~

.. . ..

~37~7



In the embodiments of FIGSo 3 and 4, the
normally closed control switch or key 12 controls a mat
17 and a normally open alarm switch.. The control switc~
or key 12 is connected to the locl~ ln relay 2 and the
battery 16 and is unlocked for operation by a key.
In the embodiment of FIGo 3, a fire detector 13,
a panic switch 14, a trap 15 and the battery 16 are
connected in circuit with the loc~ in relay 20 The ~ire
detector 13 and the panic switch 14 should not be con-

trolled by any control switch, unless desiredO
The embodiment of FIGv 4 is the same as that ofFIG~ 3, except that in FIGo 4 the normally open control
switch lock 11 controls t~e trap 15 only, w~nereas in the
embodiment oE FIG~ 3 it controls the operation of ~he
fire de-tector 13 and the trap 15.
A trap is a switch or switches, connected in
series and normally closed, used as an alarm switch. The
trap may be on a door or a window and may comprise any
suitable type of alarm switchv The embodiment of FIG~ 6
includes the ~ire detector 13, the panic switch 14 and an
alarm switch or switches 18. The alarm switch or switches
of the embodiment of FIGo 6 are normally open and are
connected in circuit with the lock in relay 2. The alarm
switches 18 may be placed on doors or windows and may
comprise any suitable type of alarm switchesO


3~777




While the invention has been described by means
of specific ex~m~les and in sp9cific e~bodiments, I do
not wish to be limited theretop for obvious modi-fications
: will occur to those skilled in the art without departing
from the spirit and scope of the invention.




~.-



; ' .




~,

Representative Drawing

Sorry, the representative drawing for patent document number 1103777 was not found.

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 1981-06-23
(22) Filed 1979-02-15
(45) Issued 1981-06-23
Expired 1998-06-23

Abandonment History

There is no abandonment history.

Payment History

Fee Type Anniversary Year Due Date Amount Paid Paid Date
Application Fee $0.00 1979-02-15
Owners on Record

Note: Records showing the ownership history in alphabetical order.

Current Owners on Record
FOWLER, EUGENE W.
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.
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Document
Description 
Date
(yyyy-mm-dd) 
Number of pages   Size of Image (KB) 
Drawings 1994-03-17 2 61
Claims 1994-03-17 2 50
Abstract 1994-03-17 1 17
Cover Page 1994-03-17 1 17
Description 1994-03-17 7 250