Abstract: A shower door and hinge assembly comprising a glass shower door, a sloping sill, a sill angle adapter, upper and lower horizontal door frame rails, and upper and lower shower door hinges where the lower hinge is a gravity style hinge featuring a self-closing action, is presented. The hinges of the present invention shower door and hinge assembly attach only to horizontal edge surfaces of the glass door. The hinges do not attach to any vertical surface of the door.

Abstract: An improved top pin assembly is provided for a traffic door which is side-mountable to the door without the necessity of integrated the top pin assembly within the interior of the door panel.

Abstract: A door hinge unit in a refrigerator which pivots a door on a refrigerator body, and holds the door to maintain an opened state or a maximum opened state at a predetermined position for preventing the door from hitting an external object and a hinge shaft from breaking, and minimizes a friction surface between a male member and a female member of the hinge for making movement of the hinge smooth and preventing the hinge from causing noise.

Abstract: A riser hinge (10) is disclosed which includes a mounting flange assembly (12) pivotally coupled to a strap assembly (15). The strap assembly includes a camming assembly (27) having a multi-lobed cam 28 with a large lobe (38) and a small lobe (39). The lobes have a top bearing surfaces which extends to a flat dwell surface. The large lobe top dwell surface (41) is of a select size (arcuate length) which is longer than that of the small lobe top dwell surface (44). The camming assembly also includes a cam follower (56) having two cam following ridges (69). The asymmetrical configuration of the grooves creates a first, large ridge (70) and a second, small ridge (71). The bottom bearing surface (77) of the small ridge rides upon the top bearing surface of the small lobe. Similarly, the bottom bearing surface (73) of the large ridge rides upon the top bearing surface of the large lobe.

Abstract: An improved top pin assembly is provided for a traffic door which integrally is provided with a hold open device for maintaining the door in either one of opposite fully open positions.

Abstract: A height adjustment device for a hinge having one hinge leaf that can be snapped into or inserted into a receiving part mounted on a door leaf or on a door frame, and with a height adjustment mechanism in the receiving part which has abutment against an edge of the hinge leaf. The height adjustment mechanism has a slide that is limitedly movable in the receiving part, and a rotatable height adjustment member. The slide has a portion for abutment against an edge of the hinge leaf. The height adjustment member has a plurality of radially directed, angularly separated arms of different lengths, wherein an end portion of such an arm is adapted to engage with an adapted engaging portion of the slide.

Abstract: A door assembly for pivotally securing a door to an animal enclosure or other enclosure. The door assembly comprises a pivot pin assembly integrally formed with the door and a hinge secured to the enclosure adjacent the opening. The pivot pin assembly preferably comprises a vertically oriented pivot pin integrally formed with upper and lower horizontal support members extending from upper and lower ends of the pivot pin across a portion of the door. The pivot pin is fitted within a hinge barrel formed within the hinge in a manner to permit the pivot pin to rotate within the barrel such that the door may be pivoted from an open to a closed position.

Abstract: A partition apparatus or system having one or more panels each releasably fixed with respect to a hinge element. The hinge element has at least one hinge leaf, each with an outer edge. Each hinge leaf has at least one opening, preferably multiple openings, extending from the outer edge in a direction inward toward the hinge pin. The panel at least partially defines a slot. A male connector is mounted within the slot. The hinge leaf can be inserted within the slot so that the male connector engages within the opening of the hinge leaf. The opening of the hinge leaf can be shaped so that the hinge element is releasably fixed with respect to the panel.

Abstract: A pivot door hinge having a door receiving channel member pivotally connected to a fixed base plate member, the base plate member having a pair of opposing parallel ridge members defining an alignment channel, such that the channel member is retained within the alignment channel until pivoted from the centered orientation, whereby the channel member rests on the ridge members.

Abstract: A gravity hinge is disclosed that is simple to manufacture and avoids limitations found in known gravity hinges. The hinge includes two cylindrical knuckles joined by a spindle and separated by a polymer bushing. The junction of the knuckles and the bushing is at an angle oblique to the vertical axis of the knuckles and spindle. The oblique angle causes the upper knuckle to rotate upward upon the application of a rotational force thereby storing potential energy. Upon the release of the rotational force the upper knuckle falls or (rotates) back into place thereby returning the hinge to its natural, closed position.

Abstract: In a preferred embodiment, a glass door hinge system for attachment of a glass door to a frame, the system including: an upper hinge member having an upper clamping member for attachment to an upper horizontal edge of the glass door and having an upper base member for attachment to the frame, the upper clamping member being rotatably attachable to the upper base member; and a lower hinge member having a lower clamping member for attachment to a lower horizontal edge of the glass door and having an lower base member for attachment to the frame, the lower clamping member being rotatably attachable to the lower base member.

Abstract: An improved automatic door closure is provided for a door which has a door post mounted by two or more members attached to a door jamb. The door closure comprises a roller which is mounted on the door jam, a cam which is mounted on the door post so that it will rotate with the door post but is capable of limited movement relative to the post in an axial direction, and a spring for urging the cam against the roller as the door is swung between open and closed positions. The cam is contoured so as to cause it and the roller to coact with spring arranged to cause the door to return from open to closed position without any operator applied force. In a preferred embodiment of the invention, the door closure apparatus comprises a compression spring for urging the door to close, and an adjustable mechanism for varying the force exerted by that spring.

Abstract: A self-closing isolation door installation adapted to swing between a closed and an open position. A resilient gasket is connected about the periphery of the door to insure a tight seal. The door has a rotatable first hinge vertically mounted and adapted for mounting to the side of a door frame. A second self-closing hinge is provided including an elongated C-shaped bracket mounted into the edge of the door. The C-shaped bracket includes a vertical support strut, upper arm and lower arm. A support shaft is vertically fixed between the upper arm and the lower arm. A housing bracket is mounted to the shaft and is adapted for mounting to the side of the door frame. The housing bracket defines an inverted V-shaped cam surface. A cam follower including a radially spaced apart inner follower roller and an outer follower roller is mounted around the shaft with the outer roller adapted for vertical movement within a slot in the strut and the inner roller is engageable to follow the cam surface.

Abstract: A gravity door hinge in which a cam is inserted non-rotatably into the lower half of a socket provided in a fixed member, the upper end of an axial rod is inserted non-rotatably into an axial bore hole provided in a rotational member, a cam follower is fitted rotatably around the middle of the axial rod by inserting the axial rod through a central hole bored in the cam follower, the lower half of the axial rod is inserted rotatably into an axial hole formed by hollowing out the center of the cam, the cam follower is fitted rotatably into the upper half of the socket, on top of the cam housed in the lower half of the socket so that an inclined cam surface formed on the lower end of the cam follower comes into close contact with an inclined cam surface formed on the upper end of the cam, and the base of the socket is completely closed.