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8129930 |
Induction actuated container
A method of controlling an operation of an induction actuated container cover includes the steps of (a) normally retaining a cover panel of the container cover in a closed position; (b) detecting a...
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7395782 |
System and method for providing selective access to animal food
A system and method for providing access to animal food utilizes identification tags on domestic animals, generally attached to a collar. The identification tag generates a signal that is detected...
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7342368 |
Automated garage door closer
An automated garage door closing device for a remote controlled overhead garage door wherein the device is mounted on one of a pair of parallel tracks receiving rollers suitably mounted on the...
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7024819 |
Automatic door closing device
A system includes a transmitter, a receiver, and a processor. The processor detects a trigger event. In response to the trigger event, the transmitter transmits a detection signal. If the receiver...
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6994247 |
Waste storage device
A waste storage device includes an inlet aperture and a length of flexible tubing passing through the inlet aperture from a cassette. The flexible tubing is pinched by a pair of rollers which can...
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6906487 |
Anti-pinch window drive circuit
An antipinch circuit prevents the motor driven closure of an automotive window if a soft obstacle is compressed between the window and the top of the door frame, and the window is opened in...
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6350407 |
Process for producing sintered product
A method of manufacturing a sintered compact is disclosed herein. The method comprises the steps of: (1A) producing a green body containing metal powder, for example, by means of metal injection...
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6091217 |
Safety gate operator which prevents entrapment, and method of its operation
An automatic gate operator includes an electric drive motor coupled by a drive train to a movable gate, and includes provisions for sensing an actual or impending obstruction or blockage of the...
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6075333 |
Kit for retrofitting manually operated electric garage door to operate automatically
A method and apparatus for retrofitting a manually operated commercial garage door opener to function automatically.
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6044588 |
Window arrangement having a vibration generator to facilitate movement of a window pane
A window pane is slidably driven in two guides by an electric motor. A piezoelectric vibrator vibrates the window pane to facilitate sliding movement of the window pane relative to the guides and a...
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5893234 |
Time delay release mechanism for a fire barrier
A time delay release mechanism has a brake actuator including an actuation member movable between engaged and released positions. The actuation member, when in the engaged position, operatively...
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5878530 |
Remotely controllable automatic door operator permitting active and passive door operation
A remotely controllable door operator system permitting active and passive use of a door includes a transmitter, a receiver, a master timing sequencing mechanism, a clutch-regulated prime mover...
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5428278 |
Operating delay means for a hydraulic door closer
A door closure delay system produces a first signal when a person approaches a doorway housing the door. The first signal is applied to a timing system and a voltage comparator so that a second...
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5357183 |
Automatic control and safety device for garage door opener
A control device for garage door opener to provide automatic reclose and safety reverse if obstruction occurs is disclosed. Photoelectric sensors are positioned across the door opening to detect...
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5282336 |
Vehicle actuated fence gate
The gate of this invention comprises a gate panel 10, a gate hinge mounting means 12 for mounting the gate panel to a hinge post 14 or the like, a gate latching closure means 16 mounted by the gate...
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5076016 |
Powered sliding door system
The present invention is a powered sliding door system for a vehicle including a semi-rigid cable adapted to be affixed to the sliding door of a vehicle and a powered electromagnetic clutch for...
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5067276 |
Semi-automatic gate
A semi-automatic gate may be opened from a vehicle by pulling on a line attached to a counterbalance control mechanism. The counterbalance control mechanism comprises a cylinder having a...
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5040331 |
Remote controlled opening device
The invention relates to an automatic remote controlled opening device which may be used to open and close doors, windows or similar closure systems. The opening device includes a receiver to...
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5027553 |
Garage door closing apparatus
An add-on device for a motorized garage door opener for automatically closing the door after a delay following the opening of the garage door by a driver and movement of a vehicle out of the...
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4887205 |
Gate control system
A system for controlling a gate includes a microprocessor which normally automatically recloses a gate after it has been opened in response to a radio or sensor loop signal, and which normally...
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4831314 |
Drive apparatus for opening and closing mechanism
A drive apparatus for an opening and closing mechanism includes an electric motor, a clutch, a reduction gear unit and a timer mechanism. The clutch includes a coupling having first and second...
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4821024 |
Door operator pre-warning system
An advance warning system for an automatic electric door operator in which a command signal originating from a remotely located hand held radio transmitter or a wall switch located within the...
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4803482 |
Exit control and surveillance system
In the system, exits are provided with opening bars and locks. The system has a central post and control boxes. Each control box is associated with an exit and is connected to the central post....
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4652862 |
Surveillance and control system for emergency exists installed in a building
A building has at least one security guard post to control the secured building exits, each of which has an unlocking instrumentality, without forbidding their emergency use. When activating the...
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4604826 |
Automatic sliding door operator
A solid state integrated regulating circuitry for incorporation in the conventional control circuitry of automatic sliding door systems includes timing and processing circuits operative through...
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4583517 |
Fireplace screen
The fireplace screen comprises a frame defining a central opening and including first and second pairs of vertical guide tracks along opposite lateral sides of the opening. A housing is mounted...
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4571884 |
Arrangement for lowering and lifting of a window of a motor vehicle door
An arrangement for the lowering and lifting of a window of a motor vehicle door which includes a window lifter mechanism with a driving motor and an operating switch; for improving the closing...
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4502726 |
Control apparatus for pivotal-sliding roof panel assembly
A control apparatus for a pivotal/sliding roof panel powered by a reversible electric drive motor operative to move a roof panel from a closed position in a roof opening in a vehicle to either of a...
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4481887 |
Security doors
A security door and system for installation as the entrance and exit to a building or office to automatically control the passage of persons therethrough and to trap certain persons therein...
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4428278 |
Emergency ventilation control apparatus for animal confinement house
An apparatus responsive to electric power failure for opening curtains or doors normally covering ventilation openings in a confinement house of the type used for raising poultry and livestock is...
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4426639 |
Timing apparatus
A timing apparatus for holding a door open for a controlled period of time before releasing it for closure. The timing apparatus includes a switch operable to produce a switching signal. A first...
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4378657 |
Bumper actuated gate
A laterally swinging gate adapted for opening with a vehicle comprises a gate frame including stiff longitudinal members (1, 2) and upright end members (3, 4) interconnected and adapted to function...
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4366595 |
Door closer
An automatic motorized door closure having an arm freely movable on a motor shaft in response to opening a door and after a time delay being connected to the motor shaft and automatically moving...
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4365442 |
Automatic door control system
An automatic door operating system includes a gas operated linear motor connected to operate a door by means of a unidirectional linkage system including an arm for unidirectional engagement of the...
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4360796 |
Register-gate system
An anti-theft system for use in an attended parking lot has a cash register and an exit gate. Upon ringing up a transaction, when the cash drawer is unlatched, a normally closed switch, held open...
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4339843 |
Door closer with assist or door operating features
Hydraulic door closer apparatus has associated with it means for counter-balancing the bias of a return spring, to assist in opening the door by reducing the force needed to open it, or to open the...
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4302660 |
Door opening mechanism for partially opening a toaster oven door
A door opening mechanism for partially opening a door on a toaster oven wherein the oven includes a thermal timer for controlling the operation of the oven in a toast mode. The door opening...
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4285165 |
Arrangement in a gate
An arrangement in a gate (10) wherein a cam track (23) is provided for lifting the gate on the pivot axis (12) thereof when the gate is being swung to opened position. An abutment (34) is provided...
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4272921 |
Traffic responsive control system for automatically operated doors
A traffic responsive control system for controlling one-way traffic through a door in which the door opening means is disabled when power is initially applied to the control system while permitting...
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4220266 |
Ice door delay mechanism
A refrigerator freezer door has an ice service area in its outer face including an actuator for opening a passage closure member. Upon depressing the actuator a switch is closed to energize a power...
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4186521 |
Safety gate for vehicle wheel alignment pit installations
Safety gate mechanism for use in protecting persons working around automobile service equipment installed in a floor pit comprising bi-parting gate sections mounted for movement between closed...
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3874117 |
ELECTRIC DOOR OPENER
An electric door opener to be utilized in conjunction with a standard door closer or door check to provide the elements of automatic door control. The door opener is typically mounted on the...
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3783556 |
DOOR CONTROL SYSTEM PROVIDING AUTOMATIC DELAYED DOOR REVERSAL
A door control system for controlling a door which is operated by an instantaneously electrically reversible motor is disclosed. When a door open sensor is actuated while the door is closing, the...
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3733747 |
DOOR OPERATING MECHANISM
This invention relates to a door operating mechanism for moving a door in opening and closing movements in response to actuation of a selectively operable door operating switch. The door operating...
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3722140 |
AUTOMATIC GATE
An automatic gate characterized by several distinctive features, including: (1) the use of flexibly mounted barrier members forming a collapsible gate that moves downwardly into a recess means to...
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3662491 |
SAFETY DEVICE FOR ELECTRICAL WINDOW REGULATORS
A safety device for a motor-operated window regulator used for raising and lowering the window of a vehicle including an elongated sheath which is elastically deformable located outside the plane...
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3599371 |
DOOR OPENING AND CLOSING MEANS
A refrigerator display case has a curved or semicylindrical door which is opened by means of a button being pressed. The door continues to open after the button is released, until the door is fully...
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3512859 |
MECHANISM FOR CLOSING A DOOR
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3510982 |
SAFETY TIMER
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3497996 |
ADJUSTABLE,SELF-CLOSING,BUMP GATE
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