Class 49/236 - One direction imparts gravitational bias to swinging closure; e.g., rising hinge

Subclass of Class 49 - Movable or removable closures
Definition: Device wherein the closure is mounted to turn from an initial
No. of patents: 23
Last issue date: 02/14/2012

Number	Title	Issue Date
8112939	Oscillating self-centering traffic-door A door that has a beam and door panel that are secured by molding the door panel to the beam. ...	02/14/2012
7526894	Door and method of manufacturing A door can comprise first and second panel sections for mounting to a doorframe for pivoting about an upright door pivot axis. A hinge for coupling the door to the door frame can comprise a spine with an elongated passageway comprising first and second hinge receivi...	05/05/2009
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 condition, a drive element, and an energy transmission system, whereby en...	10/03/2006
7086642	Rackabale gate for fence and method of producing such A rackable gate having a gate panel with spaced-apart rails connected to a plurality of first pickets and a second picket. The second picket attaches to the respective rails on a side edge opposing the attachment of the first pickets to the rail. Distal opposing end...	08/08/2006
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 transversely of its center axis. The first member is secured in spaced r...	01/31/2006
6659155	Bidirectional swinging screen door and frame assembly A swinging screen door and associated frame are provided for coupling to a doorway of a structure such as a house. Hinges are provided which pivotably connect the doors to the frame in a fashion allowing the doors to pivot inward through the doorway and o...	12/09/2003
6408571	Automatic closing gate The present disclosure provides an automatic closing gate having a gate post and at least one self-closing hinge attaching the gate to the gate post. A catch post having a catch holds the gate in an open position for a period of time. The catch releases t...	06/25/2002
6152554	Adjustable hinge assembly The housing of a hinge assembly is provided with elongated apertures and a plate of less width than the housing is clamped over the apertures by mounting screws which secure the housing to a cabinet. The housing wall and the surface of the plate are serra...	11/28/2000
6073396	Gate hinge A gate hinge is provided which enables a gate to be maintained upright and level in a first closed position and to clear obstacles or follow the contour of the ground when swung into a second position. The gate hinge hereof can be used in combination with...	06/13/2000
5592717	Gate hinge A gate hinge hinges a gate to a vertical post at an installation site where the post projects vertically in an upward direction from a surface having a first surface portion extending laterally of the post in an inward direction normal to the upward direc...	01/14/1997
5471790	Electrical swing gate A pair of swingable electrified gate sections in a closed position, to be swung to an open position by the travel of a center pivot irrigation system. As the center pivot system travels through the gate area, the gate closes. Each section is connected to ...	12/05/1995
5187897	Swing doors In a door and door frame construction the door is hinged to the frame by one or more hinged structures, each hinged structure comprising a convex-surfaced support associated with the door and a convex-surfaced support associated with the door frame, at le...	02/23/1993
4662111	Mechanism for controlled closing of hinged gates A hinged driveway gate opened manually or by a vehicle against a closing force is latched in the open position for an adjustable time interval for vehicle passage by the control mechanism having an improved support connection with the gate, an improved la...	05/05/1987
4658544	Door assembly A door construction includes first and second panels which are thermally bonded together at their peripheral edges. A hinge receiving pocket is defined between these panels. A door supporting hinge section is insertable into this pocket for supporting the...	04/21/1987
4652043	Access door for harvester operator's cab An operator's cab for a self-propelled crop harvesting machine is disclosed wherein the access door is pivotally mounted on a forwardly inclined support post. The hinge axis for the access door is inclined in both a forward direction and in an inward dire...	03/24/1987
4479623	Spring operated counterbalance hinge assembly for aircraft doors A compact, spring operated, two-way counterbalance system is disclosed for the hinge assembly of an inwardly/outwardly moveable plug-type aircraft passenger door of the type adapted to pivot about an inwardly canted hinge axis whereby a first convolute cl...	10/30/1984
4474348	Cantilever spring counterbalance hinge assembly for aircraft doors A simple, compact, cantilever-type spring (31) is mounted on the aircraft body structure (22) and is positioned so as to be deflected from its normally unstressed condition to a stressed state (31') by means of a radially projecting roller (39) mounted on...	10/02/1984
4145842	Automatic unlatching and relatching drive-through gate apparatus A pair of swingable gate sections include respectively associated latching mechanisms for normally latching the gate sections in a closed position and further include a pair of spaced triggering members engageable by an approaching vehicle for automatical...	03/27/1979
4124954	Self-closing gate A self-closing gate incorporating a child-proof latch designed for constructing enclosures restricting accessibility thereto by small children. The self-closing gate comprises a gate, first and second vertically extending gate posts positioned at each sid...	11/14/1978
4096702	Mine stopping device and method of constructing same A mine stopping device and method of constructing same utilizing a plurality of laterally spaced substantially vertically disposed support members extending from the floor to the ceiling of a mine tunnel with a wire mesh screening secured thereto and exte...	06/27/1978
4069450	Knockdown cabinet having a combination door frame and front wall This invention relates to a knockdown cabinet and particularly to a one-piece molded plastic door frame and front wall having unique means for hinging the doors to the cabinet frame opening....	01/17/1978
4047332	Gate hinge composition This invention relates to an improved hinge for gates, and more particularly, to hinges for chain link fence gates characterized in one embodiment in that they provide automatic gate closing, despite uneven terrain. Further, in a second embodiment, the im...	09/13/1977

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Class 49/236 - One direction imparts gravitational bias to swinging closure; e.g., rising hinge