Door And Window Patents (Class 116/86)
  • Patent number: 9978230
    Abstract: A break-in alarm assembly for emitting an audible alarm when a window is opened includes a rod unit that may be positioned to extend between a lower pane of a window and a frame of the window. An alarm unit is coupled to the rod unit. The alarm unit emits an audible alarm when the lower pane is opened.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: May 22, 2018
    Inventor: Stephanie Schaeffer
  • Patent number: 9791247
    Abstract: A shock-tube firing device has an enclosure and at least two primer-ignition devices translatably carried within the enclosure. A threaded bore for each primer-ignition device is adjacent a forward end of the associated primer-ignition device and configured to receive a threaded shock-tube adapter. A trigger assembly is carried by the enclosure and comprises an actuation portion and a carrier portion, the actuation portion causing rearward motion of the carrier portion. A biasing element for each primer-ignition device causes forward motion of the associated primer-ignition device. A sear for each primer-ignition device causes compression of the associated biasing element during movement of the actuation portion, thereby compressing the biasing elements for causing forward motion of the primer-ignition devices.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: October 17, 2017
    Assignee: CGS Group LLC
    Inventor: Joshua J. Parker
  • Patent number: 9542822
    Abstract: An alarm system may be provided and may include a miniature coin size tag attached to doors and windows. The tag has electronic 3 axial accelerometer with wireless notification system to user's smart phone.
    Type: Grant
    Filed: February 8, 2015
    Date of Patent: January 10, 2017
    Inventors: Nissim Zur, Eli Arad
  • Patent number: 9528294
    Abstract: An intelligent door lock system has a drive shaft of a lock device. A circuit is coupled to the drive shaft. A torque limiter is coupled to the circuit. The torque limiter is configured to reduce excessive force being applied to components of the intelligent door lock system. A motor is coupled to the circuit.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: December 27, 2016
    Assignee: August Home, Inc.
    Inventors: Jason Johnson, Shih Yu Thomas Cheng, Peter Alf Joakim Fornell
  • Patent number: 8773263
    Abstract: A security method and apparatus is disclosed. In one embodiment, a method for providing an alarm for a window by a security apparatus comprises calculating a first distance between a detector mounted within a movable portion of the window and a window frame edge and calculating a second distance between the detector and the window frame edge. The method further comprises determining whether the movable portion of the window has remained stationary for more than a predetermined time period based on the first distance and the second distance and, if the movable portion has remained stationary for more than the predetermined time period, storing the second distance in a memory, placing the security apparatus into an active alarm state, calculating a third distance observed by the detector, determining a change between the third distance and the second distance, determining whether the change exceeds a predetermined distance, and generating an alarm signal if the change exceeds the predetermined distance.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: July 8, 2014
    Assignee: Ecolink Intelligent Technology, Inc.
    Inventor: Thomas Thibault
  • Patent number: 8207849
    Abstract: A security storage container securely retains an item of merchandise and typically includes a base and lid. An alarm system in the container is activated when the container is locked and deactivated when the container is unlocked. The alarm system may include a flashing LED, an EAS tag for activating a security gate, and a sound-emitting device which may emit a loud alarm upon an attempt to pry the lid from the base or upon the container entering into proximity of a security gate.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: June 26, 2012
    Assignee: Checkpoint Systems, Inc.
    Inventors: Dennis D. Belden, Jr., Nicholas M. Sedon
  • Patent number: 7924154
    Abstract: A security storage container for securely retaining an item of merchandise therein. The storage container is in the form of a box having a base and a lid, with the item of merchandise being received in the base. The lid is locked to the base by a locking mechanism. The storage container also includes an internally disposed alarm system which is activated when the lid is locked to the base and is deactivated when the lid is unlocked from the base. The lid can only be unlocked with a specially designed key. The alarm system includes a flashing LED which indicates to the consumer that the storage container has an activated alarm therein. The alarm system further includes an EAS tag for activating a security gate at an exit to the protected environment; and further includes a sound-emitting device that will emit a loud sound if an attempt is made to pry the lid from the base when the lid is in a locked position.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: April 12, 2011
    Assignee: Checkpoint Systems, Inc.
    Inventors: Dennis D. Belden, Jr., Nicholas M. Sedon
  • Patent number: 7598861
    Abstract: A security storage container for securely retaining an item of merchandise therein. The storage container is in the form of a box having a base and a lid, with the item of merchandise being received in the base. The lid is locked to the base by a locking mechanism. The storage container also includes an internally disposed alarm system which is activated when the lid is locked to the base and is deactivated when the lid is unlocked from the base. The lid can only be unlocked with a specially designed key. The alarm system includes a flashing LED which indicates to the consumer that the storage container has an activated alarm therein. The alarm system further includes an EAS tag for activating a security gate at an exit to the protected environment; and further includes a sound-emitting device that will emit a loud sound if an attempt is made to pry the lid from the base when the lid is in a locked position.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: October 6, 2009
    Assignee: Checkpoint Systems, Inc.
    Inventors: Dennis D. Belden, Jr., Nicholas M. Sedon
  • Patent number: 7561042
    Abstract: A portal barrier movement alarm includes an apparatus having (a) a first assembly adapted for attachment to the moveable portal barrier; (b) a second assembly adapted for attachment spaced apart from but proximate to the moveable portal barrier; (c) and a vibration inducing ridge and a vibratable prong, the vibratable prong having a vibratable free end, one of the vibration inducing ridge and the vibratable prong being attached to the first assembly and the other of the vibration inducing ridge and the vibratable prong being attached to the second assembly such that the movement of the first assembly with respect to the second assembly causes the vibratable prong to contact the vibration inducing ridge and to thereby cause the vibratable prong to vibrate.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: July 14, 2009
    Assignee: Southern California Edison
    Inventor: Steven D. Root
  • Patent number: 7265672
    Abstract: An apparatus and method wherein a single sensor assembly will alarm both windows of a double hung window. The single sensor assembly provides a small magnet installed in the upper window sash and a sensor block installed on the lower window sash, said sensor block having a magnet contained in an internal raceway. The single sensor assembly is used in conjunction with a standard magnetic alarm system. The upper window sash magnet repels the sensor block magnet from one end of the sensor block diagonally upward within the sensor block raceway to an opposite end.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: September 4, 2007
    Inventor: Lou Guaragna
  • Patent number: 7126474
    Abstract: An electronic alarm and a vending machine equipped with the alarm monitors a plurality of zones by suitable circuitry to detect vandalism and theft. Each zone has a mechanically-triggered sensor that provides an electrical output. The zones comprise a pair of door sensors and a separate, shock sensor. A solid-state logic circuit includes a red and green indicator light, and a loud warning buzzer ultimately triggered by the sensors. A circuit time delay and logic scheme analyzes sensor status, and separate false-alarm prevention circuits insure proper triggering after a predetermined delay. Alarm status is indicated by highly visible green and red status lights mounted on the door. A buzzer sounds in response to sensor activation and circuit logic. A back-up battery that is coupled to the logic circuitry for fail-safe operation includes an automatic recharge system, and dual red and green LED's monitor battery condition.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: October 24, 2006
    Assignee: Fragramatics Manufacturing Co., Inc.
    Inventors: James Larry Ingram, Yefim Y. Fundyler, Tony M. Goodwin
  • Patent number: 6989746
    Abstract: An alarm chip (10) and the use of the alarm chip (10) for giving warning of burglary or undesired entry into buildings, installations or structures, preferably by so-called shell-protection of the building, installation or structure, the alarm chip (10) detecting, by means of an associated accelerometer, motions/vibrations in the object to which the alarm chip (10) is fixedly arranged, the object being formed of e.g. a window (2), a door, possibly a frame or casing connected to the window (2) or door, wherein the motions/vibrations are converted by means of the accelerometer into an outgoing flow of acceleration values, which are further processed, by means of a processor in a signal processing circuit, in which, by means of algorithms, the acceleration values are recognized and separated into either output alarm signals or output non-alarm signals, and in which output signals may be coded/encrypted, so that each alarm chip (10) has i.a.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: January 24, 2006
    Assignee: NorDan AS
    Inventor: John Olav Rasmussen
  • Patent number: 6891479
    Abstract: A remotely controllable door operator apparatus is mountable to a doorframe structure and a movable door to control door movement between a closed position and an opened position. The operator apparatus includes a motor assembly, a linkage device, a slip clutch assembly, and a controller unit. The motor assembly has an output shaft, and the motor is mountable to one of the door and the door frame structure. The slip clutch assembly is coupled between the output shaft and the linkage device to transfer torque therebetween, and can slip to enable manual and remote operation of the door. The controller unit is coupled to the motor assembly to activate the operator apparatus to close the door in manual operation, and to open and to close the door in response to at least one remote signal. A method of using the remotely controllable automatic door operator and closer is also disclosed.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: May 10, 2005
    Inventor: Jon E. Eccleston
  • Patent number: 6885301
    Abstract: A security system for detecting and expelling external intrusions at individual windows is provided. The security system includes an intrusion detection transmission system (100) having a human body detection sensor (110), an infra-red sensor (120), a switching unit (130) for connecting the detection signals from the sensors (110 and 120), and a wireless transmitter (140) for encoding and wirelessly transmitting the signal transmitted from the switching unit (130), and a central processing system (200) including a wireless receiver (210) for receiving, and demodulating the wireless receiver (210) for receiving and demodulating the wireless transmission signals from the wireless transmitter (140) in the intrusion detection transmission system (100), and a home switching unit (220) for controlling operations of a home automation unit (400) and a warning siren portion (240) according to the outputting signal of the wireless receiver (210).
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: April 26, 2005
    Assignee: Windowcom E&C Corporation Limited
    Inventor: Joung-Seo Park
  • Patent number: 6778086
    Abstract: An open window security lock consisting of a staff having a suction cup for attachment of the staff to the window which allows a sliding window sash to open a small amount for ventilation but not opening enough to admit an intruder. The staff upper end has a switch to sound an alarm if the upper end is moved away from touching the fixed upper frame. An alarm switch can be a displacement detector, motion detector or vibration detector. The staff length is adjustable. A length clamping can be a detent button, staff wall set screw, metal collar with a set screw, hose clamp, or an eccentrically pinned lever. The alarm may include wireless transmitter communicating with a wireless receiver.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: August 17, 2004
    Inventors: Gerald Angelo Morrone, Louis Samuel Tedesco
  • Patent number: 6081186
    Abstract: An electronic system of locking and alarming one or more doors such that if an attempt is made to open the door, the alarm sounds. The device is preferably installed on vehicles having multiple built-in equipment compartments. The device is powered by the vehicle battery and includes a novel lock mechanism which requires very little power. The lock mechanism comprises a lock housing, a pin, a pivoting latch gate, a switch and a solenoid. The device is electrically connected to a vehicle's conventional remote-controlled security system and sounds an alarm if an attempt is made to open a compartment door.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: June 27, 2000
    Inventor: Morgan Allen Adams
  • Patent number: 5489045
    Abstract: A portable anti-burglar device with optional fluid dispensing, alarm and fingerprint retention features is disclosed which when activated by the opening of a door or window or other violation of a secured aperture a spring biased actuating member operates to discharge a pre-packaged tear gas or identification fluid or other liquid dispersing canister and simultaneously close an electrical switch which is in series with another switch which controls the optional operation of an audible alarm when the device is activated regardless of whether a pressurized canister is in place. The device is portable and is coated with a wax or tar which can preserve fingerprints that may be deposited on the device by an intruder's attempt to deactivate it. The device is fitted with moveable mounting brackets which allow for a variety of mounting situations and also with a tamper resistant locking mechanism.
    Type: Grant
    Filed: February 17, 1993
    Date of Patent: February 6, 1996
    Inventor: Roy H. Jennings
  • Patent number: 5197407
    Abstract: A security device in the form of a combination door or window stop comprising a housing for containing a canister of gas under pressure, a valve mechanism for releasing the gas through a sound generator upon unauthorized movement of an associated door or window, and means for selectively clamping the housing on the rail of the door or window.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: March 30, 1993
    Assignee: Emma A. MacDowell
    Inventor: James K. Sims
  • Patent number: 5022340
    Abstract: A portable mechanical burglar alarm for monitoring doors and windows includes a base plate having a back surface provided with a plurality of suction cups for releasable securement adjacent a door or window. A pair of bells are secured in spaced relation on a front surface of the base plate and a pivotal oscillating clapper arm is disposed therebetween. A spring powered bell ringing mechanism is enclosed by a housing on a front surface of the base plate. A trigger mechanism within the housing is operative to actuate the bell ringing mechanism upon disengagement of an adjustable abutment stop member from contact with a door or window frame upon opening of the door or window. A retaining mechanism within the housing prevents unauthorized resetting of the trigger mechanism subsequent to activation, to prevent the ringing bells from being silenced.
    Type: Grant
    Filed: November 15, 1989
    Date of Patent: June 11, 1991
    Inventor: Budrick S. Caraba
  • Patent number: 4604609
    Abstract: A security arrangement for a closed door having an elongated member connected between the door and the wall and a tautly mounted string joining the door knob and an electrical switch on the wall, the string passing over the elongated member. When an attempt is made to open the door tension on the string is increased resulting in the switch being moved into its closed position thereby energizing an alarm device.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: August 5, 1986
    Inventor: George H. Wakefield, Jr.
  • Patent number: 4567846
    Abstract: A magnetically operated door chime adapted for mounting on a door and door frame. The door chime includes a casing adapted for mounting on the door frame and having a plunger assembly mounted for reciprocation along a horizontal path perpendicular to the plane of the door when the door is closed. The plunger assembly includes a first magnetic unit on its outer end arranged in face-to-face contact with a second magnetic unit on the door, when the door is closed. A chime bar extends across the path of movement of the other end of the plunger assembly and a spring yieldably biases the plunger assembly in a direction toward the chime bar.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: February 4, 1986
    Inventor: Thomas D. Kurtz
  • Patent number: 4522146
    Abstract: Presented is a burglar alarm system for installation in residential, commercial or industrial premises. The burglar alarm system incorporates photographic equipment which photographs the intruder and a pneumatically operated audible alarm.
    Type: Grant
    Filed: August 17, 1982
    Date of Patent: June 11, 1985
    Inventor: Heinz F. Carlson
  • Patent number: 4478168
    Abstract: A door brace alarm apparatus for resisting movement of a door and for providing a sound alarm when such movement of the door is attempted. Two slideably connected shaft members are adjustable for angular placement between the door knob and the floor. A bifurcated yoke and a floor support retain the door brace alarm in position by contact with the door knob and floor. A pivotally mounted alarm housing connected to one of the shaft members houses an alarm retainer which provides for extension adjustment by threaded cooperation with a cavity in the alarm housing. The alarm retainer houses the sound generator and adjusts to position the sound generator in juxtaposition with the door so that it will emit an alarm sound upon impact by the door.
    Type: Grant
    Filed: July 23, 1982
    Date of Patent: October 23, 1984
    Inventor: Robert C. Wimmer
  • Patent number: 4414912
    Abstract: The invention is an improved burglar alarm for doors and windows or other similar openings in an enclosure to be protected against secretive entry. The invention consists of a series or plurality of bell-like devices which are automatically dumped or knocked to the floor when entry is made, thus creating an alarm noise. The alarm is operable on doors or windows that swing or slide, or which open inwardly or outwardly. The alarm is of simple construction and easy to install, consisting of a plurality of bell-like elements, a supporting rod, mounting apparatus for the supporting rod, and a wiper member for certain mounting positions.
    Type: Grant
    Filed: May 21, 1982
    Date of Patent: November 15, 1983
    Inventor: Charles W. Algire
  • Patent number: 4370644
    Abstract: An alarm device for doors having in series an electric supply, such as batteries, three switches and a relay. The relay is locked upon the simultaneous closing of the three switches and actuates an alarm circuit. The first and second switches are respectively closed and open when the door is closed and respectively open and closed when the door is fully open. The three switches are closed during the opening and closing of the door and when the door is ajar and the door bolt is retracted. The third switch is controlled by the bolt and is closed except when the bolt is retracted.
    Type: Grant
    Filed: October 1, 1980
    Date of Patent: January 25, 1983
    Inventor: Serge-Andre Droz
  • Patent number: 4311225
    Abstract: A door member such as a garage door is driven by a motor through a roller chain having a finite length to travel in the garage opening and closing directions. The roller chain is driven by a single drive sprocket driven by the motor to make its reciprocating movement along the same path while making rolling engagement at its roller portion with a guide rail constructed to support the roller portion of the roller chain from the opposite sides. A trolley connected to the door member by an arm is releasably coupled to the roller chain and is also guided along the guide rail while making sliding engagement therewith. A mechanism for detecting abutment of the door member with an obstruction present on the traveling path is provided to detect the above situation when a physical force is imparted to the roller chain due to the abutment. The opening and closing movement of the door member, stopping of rotation of the motor and detection of the presence of an obstruction are electrically controlled.
    Type: Grant
    Filed: June 12, 1979
    Date of Patent: January 19, 1982
    Assignee: Hitachi, Ltd.
    Inventors: Toshio Tsubaki, Takeshi Tokunaga, Seiji Yonekura, Shigeru Matsuoka, Makoto Miura, Kozi Yamauchi
  • Patent number: 4284980
    Abstract: A door burglar alarm system having, preferably, a door movement intercepting component which may be moved easily in the direction of door movement by an opening motion of a door and which may be connected to a trigger mechanism to initiate an alarm signal in response to a predetermined distance having been traversed by the intercepting component, this intercepting component whereupon may provide a positive resistance prohibiting the further movement thereof in the direction of opening the door whereby the door is also prohibited from opening further.
    Type: Grant
    Filed: April 20, 1978
    Date of Patent: August 18, 1981
    Assignee: Power Systems Development Corporation
    Inventor: Walter W. Hoinski
  • Patent number: 4205305
    Abstract: A burglar alarm provided with a housing which contains a bell assembly and a battery compartment connected in series with a switch assembly having a linearly movable element which can be displaced a predetermined threshold distance by a chain extending to a magnet temporarily joined to a metal bracket attached to a movable surface. The switch assembly contains a pivoted contact which moves against a fixed contact when the linearly movable element is displaced a predetermined distance, and remains there regardless of the subsequent position of the linearly moveable element until a button operationally connected to the switch assembly is moved to the "off" position. The bell assembly includes a motor having a clanger support mounted on its shaft, the clangers being loosely mounted on the clanger support so that they can strike the bell without impeding the rotation of the motor.
    Type: Grant
    Filed: May 23, 1978
    Date of Patent: May 27, 1980
    Inventor: Tatsuji Nakada
  • Patent number: 4194461
    Abstract: A door alarm toy comprising a whistle adapted to be sounded by air escaping from an inflated balloon; and a clip adapted for engagement between a door and its door frame to hang the toy with an inflated balloon pressed against the door to frictionally retain a twist in the balloon which prevents it from deflating. When the door is then opened, the toy drops, the balloon untwists and air escaping from the balloon sounds the whistle.
    Type: Grant
    Filed: April 19, 1978
    Date of Patent: March 25, 1980
    Assignee: Custom Concepts, Incorporated
    Inventor: James F. Kubiatowicz
  • Patent number: 4193067
    Abstract: A burglar alarm is disclosed which detects the unauthorized opening of a door or window. The device has a longitudinally adjustable rod which extends between the burglar alarm and the moveable portion of a closed door or window. An attempt to open the door or window activates the burglar alarm causing the alarm to sound. A built in detent within the burglar alarm holds the alarm in the "on" position until manually released. A releasable locking fabric mounts the alarm to an adjacent stationary door or window frame. The alarm is readily separated by hand from the releasing locking fabric for easy opening of the door or window in the event of an emergency requiring a rapid exit.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: March 11, 1980
    Assignee: Harry Belcastro, Sr.
    Inventor: Gary Hawkins
  • Patent number: 4166428
    Abstract: An intruder alarm security device includes a source of fluid under pressure which serves as a medium for oscillating a diaphragm at the throat of a horn to create an audible warning signal. The intruder alarm includes an actuator, a plunger assembly and connecting structure for coupling rotary movement of the actuator to longitudinal movement of the plunger assembly to open communication between the diaphragm and the source of fluid. The or connecting coupling structure includes a lost motion connection so that the plunger assembly is controlled by the actuator only to the point of opening the communication. And, the plunger assembly includes an orifice member for metering the flow of medium to the diaphragm, yet, first is capable of allowing any entrained particulate from a closure of the source to clear the device.
    Type: Grant
    Filed: May 9, 1978
    Date of Patent: September 4, 1979
    Assignee: General Time Corporation
    Inventors: John D. Freeman, David E. Earls, Edward F. Cielaszyk
  • Patent number: 4067289
    Abstract: A portable alarm useful for indicating unauthorized entry at doors and windows includes a housing and a bell casing mounted in the housing with a clacker arm rotatably mounted within the casing and adapted to create an audible signal. A trigger arm is mounted within the housing, extending into to the bell casing and is biased against the clacker arm in a first direction. An actuator including an L-shaped arm and a pressure plate is pivotably mounted along an edge of the housing such that the lever arm extends outside the housing and with the pressure plate dimensioned so as to exert a pressure against the trigger arm in a second direction opposing the first direction responsive to a movement of the lever arm. The pressure plate is biased away from the trigger arm, until such time as a substantial force against the pressure plate overcomes the bias and forces the other end of the trigger arm out of engagement with the clacker arm, thereby effecting the audible signal.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: January 10, 1978
    Inventor: Curtis B. Joyner, Jr.
  • Patent number: 4062314
    Abstract: A signaling device for use with a closure which is movably mounted within a frame having a housing, and a vibratile member mounted on the housing. A striker pin is mounted on the housing. A biasing spring is disposed about the pin and tends to maintain the striker pin at an intermediate rest position spaced from the vibratile member. A magnet is adapted for mounting in movable relation to the housing in accordance with the movement of the closure, for magnetically holding the striker pin in a retracted striking position spaced from the vibratile member when the closure is disposed in a pre-selected position in the frame, and for releasing the striker pin to permit the striker pin to overcome the biasing force of the spring and strike the vibratile member when the closure is moved away from the pre-selected position.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: December 13, 1977
    Assignee: Charles Nick Morris
    Inventors: Shelby A. Allen, Neville R. Black
  • Patent number: 4050402
    Abstract: A warning device to discourage the unauthorized entering of doors and windows utilizing a spring contracted bellows held in an extended condition by anchor means associated with building closure structure. Upon the opening of the associated door or window one of the anchor means is released permitting the bellows to be rapidly contracted producing an audible sound by means of a vibratable reed to warn the occupant and discourage the intruder from further entry.
    Type: Grant
    Filed: July 1, 1976
    Date of Patent: September 27, 1977
    Inventor: Henry H. Merriman
  • Patent number: 4040381
    Abstract: A visual burglar alarm in the form of a mechanism for indicating that a door has been opened at least once during the absence of the occupant and therefore that caution should be exercised by the occupant in entering the room closed off by the door; the mechanism includes a tubular housing having a constriction narrowing a portion of the bore, means for attaching the tubular housing upright at the upper margin of a door, a magnet loosely held in the bore above the constriction, a non-magnetic shank extending down from the magnet and loosely passing through the constriction, and means for causing the magnet to adhere at the door jamb when thrust up from below by pressure on the lower end of the shank, so that when the door opens the magnet falls and gives indication of intrusion.
    Type: Grant
    Filed: April 2, 1976
    Date of Patent: August 9, 1977
    Inventors: Gerard G. Keogh, Sr., Gerard G. Keogh, Jr.
  • Patent number: 4034697
    Abstract: A fire extinguisher cabinet protectively encloses a fire extinguisher of the portable type and provides a transparent movable access panel through which the fire extinguisher may be readily seen. Movement of the access panel actuates an audible alarm to indicate that the cabinet has been opened. The cabinet discourages theft of the fire extinguisher as the same cannot be removed therefrom without opening the access panel and actuating the alarm unless a key controlled lock and actuating arm is moved to inactive position prior to moving the access panel.
    Type: Grant
    Filed: February 4, 1976
    Date of Patent: July 12, 1977
    Assignee: A-T-O Inc.
    Inventor: Walter E. Russell
  • Patent number: 4024986
    Abstract: A fluid dispensing anti-burglar device is disclosed which discharges a fluid, containing a chemical such as tear gas, into an area to be protected when an intruder opens a window or a door or forces open a window or a door to enter a private or unauthorized area with which the device is associated. The anti-burglar device employs a spring biased actuating member for discharging a pressurized container. A mechanical trigger for releasably retaining the actuating member in a cocked position and for releasing the actuating member to dispense the fluid, containing a chemical such as tear gas, is described. In addition, a lock mechanism to place the device in a non-triggerable condition is also shown.
    Type: Grant
    Filed: February 3, 1976
    Date of Patent: May 24, 1977
    Inventors: Charles R. Fegley, Werner F. Esseluhn
  • Patent number: 4024830
    Abstract: An anti-burglar sound emitting device is described in which a pressurized fluid is discharged to audibly oscillate a diaphragm to create a warning signal when an intruder opens a window or a door to enter an area unauthorized to the intruder. The anti-burglary device employs a spring biased actuating member for discharging a pressurized container wherein the fluid is discharged through a passageway and diaphragm valving structure. A mechanical trigger for releasably retaining the actuating member in a cocked position and for releasing the actuating member which moves the slideably mounted pressurized container to cause sound is described.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: May 24, 1977
    Inventors: Charles R. Fegley, Werner F. Esseluhn
  • Patent number: 3968485
    Abstract: A twine or cord is stretched across an entrance and secured at one end to one side of the entrance and at the other end linked loosely to an electric light switch near the other side of the entrance so that upon opening the entrance by way of a door by burglar or intruder the switch is activated by a pull on the cord, and thence the switch, and thereafter the link slips off the switch to prevent breakage of the cord.
    Type: Grant
    Filed: July 2, 1975
    Date of Patent: July 6, 1976
    Inventor: Harry I. DeHart
  • Patent number: 3957013
    Abstract: A portable alarm is described wherein an alarm indication is obtained from remotely accessible areas. A flexible alarm event sensor is placed in the area sought to be protected. Incremental movements of the event sensor are detected and cause motion of a hub to enable a trigger element, which normally restrains an actuator, to be pivoted aside. The movement of the trigger element enables the actuator to be released to register indication of an alarm such as activating an acoustic sound source or the closure of a switch and the like. An alternate embodiment for a trigger mechanism in accordance with the invention is described.
    Type: Grant
    Filed: August 28, 1974
    Date of Patent: May 18, 1976
    Inventor: Vladimir Ignatjev