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8082765 Device for maintaining a locked and closed state of a space-separating device in a releasable manner  
A device (1) maintains a locked and closed state of a space separating device (2) in a releasable manner, in particular a protective device of a machine (4). The device has a first part (6) with...
7985934 Clothes dryer  
A front-loading clothes dryer, a horizontally pivotable door is secured in its closed position against accidentally opening by a latching closure. Moreover, the door is connected to a safety...
6969810 Electric key switch with key sensing and ejection  
An electrical key switch provides a sensing of inserted keys and an ejector mechanism preventing parking of the key in a partially inserted position within the key switch.
6304177 Switching assembly for an exit alarm lock  
A switching assembly for use with an exit alarm lock. The switching assembly uses two reed switches which must both be closed for the alarm horn to sound. An arm/disarm switch is operated by a...
5925861 Security door lock arrangement with magnetically operated switch in the closed door position  
A security lock for a door type structure in which a latch extends between the movable door and the fixed jamb. A magnet is contained within the latch and a switch is positioned in the jamb. The...
5757269 Latch monitor  
A closure latch or bolt monitoring device having a housing mountable in a closure frame which housing receives a latch or bolt. A pivotal rocker plate is normally biased to a rest position in...
5072975 Switch box of lock device for vehicle  
A lock device for a vehicle in accordance with the present invention comprises a synthetic resin body; a recess formed on the surface side of the body and storing a latch meshing switch a striker;...
5062670 Lock monitor  
A lock monitor for fitting to lockable objects that have locks that incorporate a bolt mechanism incuding a slidable bolt and mortise. The opening of the mortise is larger in at least one...
4911488 Motor-vehicle door latch with built-in switch  
A motor-vehicle door-latch assembly for securing a door to a doorpost invention has a latch fork pivoted on the door, a support mounted on a doorpost, and a bolt projecting from the support and...
4758697 Intermittent supply control device for electric appliances of in particular a hotel room  
A device for controlling the selective switching on and off of the supply of current to an electric appliance of a premises, particularly a hotel room, includes a door lock having a bolt and a...
4717909 Indicator system for a door with sliding bolt lock  
A housing is mounted interiorly of a door frame member and houses first and second switch members which move simultaneously in response to entry of a lock bolt end into a strike plate opening. A...
4658106 Lock-operated cut-off switch for electronically operated doors  
A lock-activated cut-off switch for use in connection with electrically operated overhead garage or roll-up warehouse doors. The switch of the present invention takes the form of a spring-biased,...
4465997 Exterior mounted door and window alarm switch  
An alarm switch for indicating when a latch or dead bolt for a door or window is locked or unlocked comprises a switch casing adapted for mounting on the exterior portion of the door or window...
4390867 Burglar alarm system  
A burglar alarm system mounted in a reinforced doorway and comprising a control circuit having a normally open switch point consisting of a flange projecting from the backer plate towards the...
4129865 Alarm circuit for a door lock  
A latch tongue of a lock has a pair of contact points which are respectively connected to the gate and the cathode of a silicon controlled rectifier. When the lock is closed, the latch tongue is...
4091866 Combination door lock and electrical switch  
A door lock, particularly appropriate for a hotel or motel room, which is effectively operated from either the room side or the corridor side to lock the door closed for security purposes, and...
4003047 Emergency exit latch  
An emergency exit latch is disclosed for locking and unlocking a portal such as a window or door and sending a signal to a remote point when the portal has been unlocked. The latch includes a...
3983551 Alarm system for coin-operated telephone  
An alarm system for locking receptacles having an actuating arm, such as a latch bolt, engaging a fixed portion of the receptacle, the system including a switch having an arm for engageably...
3967080 Switch device for indicating the undue opening of doors and closing-wings  
An intrusion detector device for signalling undue opening of doors and closing-wings in general. The device is housed in a cavity of the door jamb and comprises means for supporting an alarm...
3924085 Safety-start device and circuit controller for domestic appliance  
A safety-start device for a domestic appliance insures that upon opening of the access door thereof, operation of the appliance will cease and will not automatically start again upon closing the...
3851325 LOCK AND ALARM  
A lock and alarm including a bolt and a compression spring located in a bolt casing. A latch is attached to the bolt and moves in a slot to a holding position to retract and hold the bolt. The...
3833899 DEVICE FOR ACTUATING AN ALARM IN THE CASE OF BREAKING IN  
Device for actuating an alarm in the event of a breaking into a premises by opening a door or the like. The device comprises a lock for locking the door, a detecting mechanism for detecting the...
3802233 VEHICLE THEFT PREVENTION SYSTEM  
A vehicle theft prevention system for locking the hood of a motor vehicle while simultaneously disconnecting the vehicle battery from the vehicle electrical circuitry. A locking shaft member is...
3710052 DOOR LATCH OPERATED SWITCH UNIT  
A door latch operated switch for energizing an electrical appliance, such as a lamp, in response to opening and closing a door, the switch being enclosed in an insulated housing which is fixed to...
3569646 LID LATCH AND SWITCH OPERATING MECHANISM  
A control mechanism for a laundry machine includes a switch device responsive to the unlatching of a lid-mounted lid latch or to excessive unbalance vibrations for deenergizing the laundry...
3514557 THREE-TERMINAL ELECTRIC OUTLET WITH SWITCH COMBINED WITH A DOOR LATCH OPERATED SWITCH UNIT  
3450851 DOOR LATCH MECHANISM  
3259708 Switch and striker assembly for vehicle bodies  
1,026,059. Latch fastenings. GENERAL MOTORS CORPORATION. March 18, 1965 [April 13, 1964], No. 11481/65. Heading E2A. [Also in Division H2] An automobile door latch striker includes a slidable...
3244830 Latching mechanism for front opening cabinets  
3197588 Door alarm  
3147468 Alarm systems  
3133168 Door latch and switch operating mechanism  
3007479 Latching mechanism for washing apparatus  
3005065 Domestic appliance  
2752445 Locks for sliding closure members  
2693591 Light and control switching by and in combination with a lock  
2638516 Vehicle switching device  
2637801 Door lock and light control switch arrangement  
2618282 Dishwasher having lid locking mechanism  
2615083 Burglar alarm system  
2588080 Mounting means for bolt-actuated switches  
2467815 Switch and latch strike unit  
This invention has to do with latching mechanism and, more particularly, is concerned with a novel strike assembly. The invention is especially adapted for use with door latching mechanisms...
2450819 Lock controlled switch  
This invention relates to a lock controlled switch, and more particularly to such a switch adapted to control electrical apparatus such as lights or the like. A primary object of this invention is...
2425816 Apparatus for cooling under ultraviolet radiation and vacuum conditions  
This invention relates to a method of and apparatus for storage and preservation of perishable materials such as foods. This application is an improvement on the apparatus and method disclosed in...
2301290 Door lock switch  
This invention relates to a door lock switch and has for an object to provide an electric switch combined with a door lock in such a manner that when the door is locked from the outside the...
2298518 Electrical interlock switch  
This invention relates to a new and useful electrical interlock switch. An object of this invention is to simplify and improve interlock switches generally. Another object of this invention is to...
2266086 Door lock actuated switch  
This invention relates to an electrically illuminated sign, for instance the word "occupied," to be placed over or adjacent the door of a lavatory or like room which is only temporarily occupied,...
2199471 Elevator lock and switch mechanism  
My invention relates in general to combined door latch and switch mechanisms, and more particularly to a latch for an elevator gate which opens and closes an electric circuit thereby permitting...
2193488 Refrigerator construction  
This invention relates to refrigerator construction and has particular reference to the construction and arrangement of certain parts of a refrigerator cabinet so as to make the same more...
2092828 Railway switch operating apparatus  
15 Claims. My invention relates to railway switch operal ing apparatus, and has for an object the provisio of a novel electropneumatic switch operatin mechanism which s fast in operation, which...

Matches 1 - 50 out of 108 1 2 3 >