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Document |
Document Title |
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7114290 |
Vehicle actuated gate opening/closing system
A gate opening system which includes a barrier and a barrier mounting adapted to mount the barrier in an open or closed condition, a retention device to secure the barrier in an open or closed...
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6990772 |
Automatic door closure for double-acting doors
A double-acting door closure device that automatically returns a double-acting door to a preferred center position comprises first and second members each having a helical end surface extending...
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6446307 |
Manway lid lifter
A lid lifter mount is installed on the hinge pin of a conventional manway lid, and has a compression spring assembly engaging a lever which is also installed on the hinge pin. The lever has a bar...
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5615520 |
Damped one-way self-closing gate
A one-way self closing gate such as may be used in retail stores, airports or libraries is provided with an inclined helical ramp mechanism by which opening of the gate also causes lifting of the...
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5180121 |
Aircraft door hinge mechanism with selectively triggerable actuator
A cam actuator (12) for rapidly opening an aircraft door (14) that is attached to an aircraft fuselage (18) by a hinge assembly (26). The actuator includes a piston (40), a piston rod (42) that is...
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5050344 |
Gate opening device
An automatic gate opening device is provided which simultaneously lifts and opens the gate. A drive mechanism forces the gate upward, while a roller bearing following a helical slot in a tube...
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4897960 |
Railroad crossing gate
An improved crossing gate for railroad grade crossings. The gate is constructed of an impact-resistant material, and the crossing arm is mounted so that it will swing out of the way and return to...
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4881353 |
Cubicle
A toilet cubicle having a pair of post engaging side panels bracketed to a rear wall and a top headrail engaging the side panels have doors rotatably joined in spaced apart relationship to the...
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4667440 |
Gate opening and closing system
A remotely operated gate opening and closing system including a gate post with two vertically spaced helical slots through the walls of the post, a slideable and rotatable spindle concentrically...
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4655002 |
Railroad crossing warning gate
To prevent breakage, an end section that can be positioned across a roadway is connected through a slanting pivot to a supporting section, the raised and lowered positions of the supporting section...
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4589613 |
Counterbalanced hinge assembly
A counterbalancing system (30) for an inwardly/outwardly moving door (20) pivotable about an inclined hinge axis between fully closed and fully opened positions wherein the door (20) moves: (i)...
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4570384 |
Door mount and door nose
An improved door having a door nose and a door mounting component which attach to the door panel in a manner which minimizes fastener exposure on the outer surface of the door and reduces cost of...
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4458448 |
Motorized pivoting gate with vertical lifting
The disclosure describes a device enabling a gate to pivot while making a vertical lifting. The device comprises a vertical member, such as a metallic post, helicoidal guides on the vertical...
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4447026 |
Cam operated counterbalance assembly for aircraft doors
A compact, cam operated, counterbalance system (30) is provided for the torque tube assembly (25) associated with a moveable hinged structural member (20) of the type hingedly connected to a fixed...
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4406034 |
Self-closing door hinge
A self-closing door hinge for a curtain door mounted within a frame consisting of a channel having a double helical track and a roller on said helical track which is returned to a pre-selected...
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4364200 |
Automatically operable automotive vehicle gate apparatus provided with self protection and automotive protection
Automatically operable automotive vehicle gate apparatus provided with self protection and automotive protection. The gate apparatus includes operational mechanism which moves a gate member within...
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4292764 |
Multi-panel closures
A multi-panel closure is disclosed in which a fastening member comprising a pair of integral back-to-back channels is positioned between the facing pair of edges of adjacent panels. The facing side...
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4263749 |
Gate support
An apparatus for use in elevating the movable end of the a swinging gate and for supporting and maintaining the end of gate in a predetermined position, whereby the locking drop rod of the gate may...
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4124955 |
Automatic closure
Apparatus is disclosed for use with an automatic closure of the type wherein the closure member, such as a door, returns to a home position when displaced therefrom. The closure member is at least...
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4078334 |
Air seal
An air seal is provided for restraining the flow of air through a cut-out section of a door which accommodates a door closing mechanism. A pair of nested cover strips individually flexed to a...
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4026069 |
Turnstile assembly
A U-shaped frame is secured to a pair of spaced fence posts, and the frame has yoke members which secure the U-frame at the top and the bottom to the fence posts. A one-way gate or turnstile is...
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3955241 |
Cam operated spring biased counterbalance hinge mechanism for cabinet lid or the like
A counterbalance hinge mechanism for a cabinet lid includes a stationary cabinet affixed hinge rod serving to rotatably support a pair of axially stationary lid mounting cam members and to slidably...
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3714736 |
GATE STRUCTURE
A gate slidable along and pivotal on a stanchion carries a roller engaging a cam surface on a cam block to close the gate and stop the gate in a closed position. The block is rotatable on the...
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3384996 |
Door with sealing means
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3263365 |
Door
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3222806 |
Self-closing gate
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2925674 |
Automatic gate device
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2827117 |
Vertically swinging flexible doors
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2799103 |
Vehicle opened automatic closing gate
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2793450 |
Vehicle actuated gravity closed gate
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