US3732843A - Intrusion alarm - Google Patents

Intrusion alarm Download PDF

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Publication number
US3732843A
US3732843A US00219251A US3732843DA US3732843A US 3732843 A US3732843 A US 3732843A US 00219251 A US00219251 A US 00219251A US 3732843D A US3732843D A US 3732843DA US 3732843 A US3732843 A US 3732843A
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US
United States
Prior art keywords
spring
cover
bracket
acoustic device
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00219251A
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English (en)
Inventor
M Pappas
P Witte
T Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PARKER/FALCON Inc A CORP OF NEW JERSEY
Original Assignee
Falcon Safety Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Falcon Safety Products Inc filed Critical Falcon Safety Products Inc
Application granted granted Critical
Publication of US3732843A publication Critical patent/US3732843A/en
Assigned to PARKER/FALCON, INC., A CORP. OF NEW JERSEY reassignment PARKER/FALCON, INC., A CORP. OF NEW JERSEY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FALCON SAFETY PRODUCTS, INC., A CORP. OF N.J.
Assigned to FALCON SAFETY PRODUCTS, INC., A NEW JERSEY CORP. reassignment FALCON SAFETY PRODUCTS, INC., A NEW JERSEY CORP. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PARKER/FALCON INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind

Definitions

  • ABSTRACT Alarm apparatus includes a can which has a valve and contains pressurized gas and is mounted on a support.
  • a horn is mounted on said can.
  • a cover is rcleasably mounted on the can.
  • Spring means mounted on the support is held in normally stressed condition by the latch. When the latch is released, it actuates the valve and also acts to eject the cover from its position covering the apparatus.
  • a number of alarms which operate an acoustic device such as a whistle or horn upon occurrence of a predetermined condition such as on forceable opening of a door or a window or drawer.
  • Some devices of this kind have no means to give any immediately apparent visual indication to indicate that the alarm has operated and stopped sounding when no one (except the intruder) was around to hear it.
  • Some such devices in the fire alarm art have had visual indications to indicate operation or loss of power fluid, but such indicating devices are separate and/or add to the manufacturing cost of the device.
  • Another object of the invention is to provide an alarm of the aforesaid type utilizing a simple latch mechanism that can be easily set and can be operated or unlatched by force applied to it in any of many directions.
  • Another object is to provide an alarm of the aforesaid type which uses a leaf spring as an operating element and simultaneously as a securing element for holding the horn on the mounting element or mounting bracket for the device.
  • Another object is to provide an alarm device of the aforesaid type in which a protective and/or ornamental cover is automatically released or dislocated on operation of the device incident to an attempted intrusion, to prevent muting of the sound, and to avoid the need for a sound aperture, and to give a visual signal that the alarm has operated, even after the horn blowing has ceased.
  • FIG. 1 is a phantom perspective view of an audible signal alarm embodying the invention.
  • FIG. 2 is a perspective view of the horn supporting mechanism and latch mechanism as contained inside the cover of the device of FIG. 1.
  • FIG. 3 is a side elevation view of the supporting mechanism of FIG. 2.
  • FIG. 4 is a front elevation view of the mounting bracket alone.
  • FIG. 5 is a longitudinal mid-section view ofthe cover.
  • FIG. 6 is a transverse sectional view along line 6-6 of FIG. 5.
  • a long narrow channelshaped mounting bracket 10 stamped from sheet metal, has a flat central portion with its longitudinal side edges bent up normal thereto each in the same direction, thus forming parallel flanges 12.
  • a triangular latch and release plate 50 whose purpose and function will be described later.
  • a canister clamp member 30 which is formed from a strip of sheet metal and bent into substantially cylindrical form.
  • the diameter of the clamp is such as to fit around a cylindrical canister 40 of a small power-operated horn of the type described in copending application of Michael Pappas, Ser. No. 21,244.
  • the horn comprises a flared trumpet part 42 having a part 44 radially extending from a horn body containing a hollow passage (not shown) which is internally screw-threaded and screws upon an externally screw-threaded hollow stem of a valve 46 extending from the top of the cylindrical canister 40.
  • the canister contains a liquefied gas such as Freon (TM).
  • the valve stem is tiltably mounted so that as it is tilted, gas is released through the hollow stem into the horn connection 44 and enters the horn body to cause the horn to blow. Since the horn is mounted on the stem 46, tilting of the horn body will cause the horn to emit a loud warning sound when the device is operated as hereinafter more fully described.
  • a rectangular aperture 14 is formed in the mid-portion of the flat backplate of the bracket to receive a portion 22 of the can clamp which is radially offset outwardly from the curvature of the clamp.
  • narrow strip portions 15 and 16 of the backplate are lanced out forwardly. These lanced out portions thus form flat loops 15 and 16, which are spaced forwardly of the backplate of the bracket a distance equal to the thickness of a sheet metal leaf spring member having an upper part 21 and a lower part 22.
  • the lower part 22 is flat and of a lateral dimension less than the lateral inside dimension of the flattened loops so as to be insertable through the flat loops l5 and 16 over the offset part of the canister clamp when that offset part is seated in the aperture 14 of the bracket plate 10. Since the spring end 22 when thus inserted overlies the clamp, the clamp is secured to the bracket as shown in FIGS. 2 and 3.
  • the upper end 21 of the leaf spring member is bent out at an oblique angle to the lower end 22 as shown in FIG. 3.
  • the outward force of the spring end 21 is normally restrained in the assembled or set condition of the alarm, by the latch and release member 50.
  • the upper end of the spring 21 is bent toward the backplate of the mounting bracket until its tip touches the backplate. Then, the latch member 50 is inserted inthe slot 17, thus restraining the spring in stressed condition.
  • the horn and canister are mounted by inserting the can in the clamp 30 with the horn body opposite the upper spring ends 21.
  • a wire 60 or other connector member such as a chain, a cord, or the like, which in turn may be connected to a window, door or other closure or thing, against which unauthorized movement or opening or removal is to be guarded.
  • the wire 60 is looped through a hole in the corner of the latch member 50 and passes through a guide hole in a lug l9 bent out from a wing 18 extending from the mounting bracket.
  • the wire may or may not be extended through a sleeve or thin hollow tube, the end of which can be secured to the lug 19, if desired.
  • the wire, chain, or other connector may be secured to the latch plate in any position through holes in its three corners and will operate equally well, it being an advantage of the invention that a pull downward on wire 60, or on a chain, cord or the like, to either side in any of the directions shown by arrows, will slidably remove the latch plate and release the spring and allow it to engage and tilt the horn and the valve stem to cause the alarm to operate.
  • an ornamental and protective cover 70 may be provided.
  • the cover is of hollow rectangular form but its form and external appearance may vary according to the desired usage and particular needs.
  • the cover is mounted on the canister by means of two or more parallel fingers 72 which extend inwardly of the cover from the inside flat forward surface thereof.
  • the tips of the fingers are preferably curved inwardly slightly towards each other and spaced at a distance apart equivalent to something slightly less than the diameter of the can to be embraced.
  • the latch plate 50 In operation, when the latch plate 50 is dislodged, the upper portion 21 of the spring is released and moves outwardly from the backplate of bracket towards the horn body. As the spring presses against the horn body, it moves due to the fact that it is mounted on a tiltable stem of the valve. This movement is also imparted to the cover; and the device is designed so that the movement of the horn body is sufficient to cause the fingers 72 of the cover to disengage the can body.
  • two functions are performed. Firstly, the horn is caused to sound by the tilting of the valve, and, secondly, the cover is released and falls to the floor to give a visual indication that the device has operated.
  • the fingers 72 will embrace the can body to points just past a longitudinal diametrical plane through the can so that the cover need be pressed over the can only sufficiently for the fingers to move slightly past said plane in order to maintain the cover in place. Conversely, the cover need be moved only a short distance to disengage the can body. After the fingers are retracted past said plane, they exert a force on the curved surface of the can body which tends to eject the cover.
  • An alarm device comprising a supporting bracket having a recess, a leaf spring having one end attached to said bracket and having its other end biased away from said bracket, a clamping member of generally circular form having an offset portion received in said bracket recess, said secured end of said leaf spring overlying said offset portion and holding said clamp on said bracket, means integral with said bracket holding said leaf spring on said bracket, a latch plate releasably mounted on said bracket in position to hold the biased end of said spring in stressed condition, a pressurized fluid container mounted in said clamping member, a tiltable outlet valve mounted on said container, a gas powered acoustic device mounted on said valve in position to be engaged by said spring when said spring is unlatched so as to tilt said acoustic device and valve, and a passageway between said acoustic device and said valve for passage of gas from said container to blow said acoustic device when said valve is tilted.
  • a cover enclosing said alarm device, flexible means on said cover gripping said container to hold said cover in place, said acoustic device being positioned in said I cover to engage and move the cover when said acoustic device is moved by said spring thereby to cause separation of said cover from the alarm device.
  • Alarm apparatus comprising a support, can supporting means on said support, a can containing pressurized gas held by said supporting means, a tiltable valve on said can, an acoustic device mounted on said can, spring means on said support, releasable latch means holding said spring in stressed condition normally inactive with respect to said acoustic device, said spring means engaging said acoustic device when unlatched to tilt said device and valve and release gas to blow said acoustic device, a cover for said apparatus, means releasably holding said cover on said can, said acoustic device when tilted by said spring means engaging said cover and causing disengagement of said can and cover.
  • Alarm apparatus as claimed in claim 4 in which said can is cylindrical and said fingers embrace said can at points beyond a longitudinal diametrical plane and the movement of said cover by said spring means causes withdrawal of said embracement to points less than to said plane.
  • Alarm apparatus comprising a bracket, can supporting means mounted on said bracket, a leaf spring having an end bent at an angle to said bracket and another end extending over said supporting means to hold the latter on the bracket means formed on said bracket engaging said other end of said spring to hold said spring in place, a releasable latching member engaging said bent end of said spring adjacent said bracket, a can containing pressurized gas held by said supporting means, a tiltable valve on said can, a gas-pressureoperated acoustic device mounted on said valve and taining pressurized gas mounted on said support, an acoustic device mounted on said can, valve means op,- erable to release gas from said can to operate said acoustic device, a cover releasably mounted over said apparatus, releasable latching means, spring means mounted on said support and held in normally stressed condition by said latch, said latch means when released actuating said valve means and also removing said cover from its position covering said apparatus.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
US00219251A 1972-01-20 1972-01-20 Intrusion alarm Expired - Lifetime US3732843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21925172A 1972-01-20 1972-01-20

Publications (1)

Publication Number Publication Date
US3732843A true US3732843A (en) 1973-05-15

Family

ID=22818508

Family Applications (1)

Application Number Title Priority Date Filing Date
US00219251A Expired - Lifetime US3732843A (en) 1972-01-20 1972-01-20 Intrusion alarm

Country Status (3)

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US (1) US3732843A (US20100268047A1-20101021-C00003.png)
JP (1) JPS523280B2 (US20100268047A1-20101021-C00003.png)
DE (1) DE2302460A1 (US20100268047A1-20101021-C00003.png)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034697A (en) * 1976-02-04 1977-07-12 A-T-O Inc. Fire extinguisher cabinet
US4044712A (en) * 1976-05-07 1977-08-30 Manuel Goodman Pressurized fluid powered horn
US4970983A (en) * 1988-09-28 1990-11-20 Rule Industries, Inc. Multitone horn
US5353482A (en) * 1993-03-31 1994-10-11 Ziaylek Theodore Jun Releasable latching apparatus with an electrical engagement monitoring means
US6340105B1 (en) * 1999-06-25 2002-01-22 James C. Black Portable cylinder carrier arrangement
US6702242B1 (en) * 2002-06-25 2004-03-09 Theodore Ziaylek, Jr. Releasable tank holding assembly securable to a hollow seat back to facilitate detachable securement of a tank thereinto

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614519A (en) * 1950-12-09 1952-10-21 Albert J Paladino Combined fire alarm and extinguisher holder
US3224644A (en) * 1964-03-03 1965-12-21 Davis William John Dispenser
US3244137A (en) * 1964-09-16 1966-04-05 William J Garvey Pneumatically actuated fire alarm
US3530817A (en) * 1968-11-27 1970-09-29 William J Garvey Pneumatically actuated device and arrangement for mounting same
US3561395A (en) * 1968-12-12 1971-02-09 Rowe International Inc Burglar alarm for vending machine
US3670689A (en) * 1970-03-20 1972-06-20 Falcon Safety Prod Tilt-operated hand held gas powered acoustic device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614519A (en) * 1950-12-09 1952-10-21 Albert J Paladino Combined fire alarm and extinguisher holder
US3224644A (en) * 1964-03-03 1965-12-21 Davis William John Dispenser
US3244137A (en) * 1964-09-16 1966-04-05 William J Garvey Pneumatically actuated fire alarm
US3530817A (en) * 1968-11-27 1970-09-29 William J Garvey Pneumatically actuated device and arrangement for mounting same
US3561395A (en) * 1968-12-12 1971-02-09 Rowe International Inc Burglar alarm for vending machine
US3670689A (en) * 1970-03-20 1972-06-20 Falcon Safety Prod Tilt-operated hand held gas powered acoustic device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034697A (en) * 1976-02-04 1977-07-12 A-T-O Inc. Fire extinguisher cabinet
US4044712A (en) * 1976-05-07 1977-08-30 Manuel Goodman Pressurized fluid powered horn
US4970983A (en) * 1988-09-28 1990-11-20 Rule Industries, Inc. Multitone horn
US5353482A (en) * 1993-03-31 1994-10-11 Ziaylek Theodore Jun Releasable latching apparatus with an electrical engagement monitoring means
US6340105B1 (en) * 1999-06-25 2002-01-22 James C. Black Portable cylinder carrier arrangement
US6702242B1 (en) * 2002-06-25 2004-03-09 Theodore Ziaylek, Jr. Releasable tank holding assembly securable to a hollow seat back to facilitate detachable securement of a tank thereinto

Also Published As

Publication number Publication date
JPS523280B2 (US20100268047A1-20101021-C00003.png) 1977-01-27
JPS4883798A (US20100268047A1-20101021-C00003.png) 1973-11-08
DE2302460A1 (de) 1973-08-09

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Legal Events

Date Code Title Description
AS Assignment

Owner name: PARKER/FALCON, INC., 10 PATTON DRIVE, WEST CALDWEL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:FALCON SAFETY PRODUCTS, INC., A CORP. OF N.J.;REEL/FRAME:004647/0293

Effective date: 19861031

Owner name: FALCON SAFETY PRODUCTS, INC., A NEW JERSEY CORP.,

Free format text: SECURITY INTEREST;ASSIGNOR:PARKER/FALCON INC.;REEL/FRAME:004633/0678

Effective date: 19861031

Owner name: FALCON SAFETY PRODUCTS, INC., 1065 BRISTOL ROAD, M

Free format text: SECURITY INTEREST;ASSIGNOR:PARKER/FALCON INC.;REEL/FRAME:004633/0678

Effective date: 19861031