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| Number | Title | Issue Date |
| 7040711 | Nonslip bearing arrangement A seating unit includes a mechanism for adjustably positioning a component of the seating unit. The mechanism includes first and second members, each having a generally smooth curvilinear load bearing surface and a plurality of teeth adjacent the load bearing surfac... | 05/09/2006 |
| 7003847 | Door closer A door closer comprising a housing, a member for driving engagement with a door, the member being rotatable relative to the housing in a door opening direction and in a door closing direction, a spring apparatus within the housing providing a resilient bias, the res... | 02/28/2006 |
| 5680674 | Device for controlling the movement of a wing A door closer comprises a housing (21) in which a compression spring (23) urges a piston (22) in one direction, an operating spindle (18) in the housing defining an axis (19) about which an arm mechanism (52) connected to the housing is angularly movable ... | 10/28/1997 |
| 5651162 | Hydraulic door control system A hydraulic control system for automatically closing and opening a door is disclosed and has means for providing such opening and closing even if power is lost to the hydraulic control system. Further disclosed is a fluid control device of the hydraulic s... | 07/29/1997 |
| 5623747 | Floor-mounted door closer device A floor-mounted door closure device comprising a floor trough insertable in a cavity of the floor and arranged to receive the closer casing from which a pivot pin projects, the device further comprising a cover plate covering the floor trough and closer c... | 04/29/1997 |
| 5337448 | Method of swinging a pivoted door to a selected position and cam and follower mechanism for use in the method A door closer has a cam and follower mechanism for transmitting movement between a spring and an operating member which is connected with a door. Guide elements for the cam follower can be adjusted relative to a housing to adjust the orientation relative ... | 08/16/1994 |
| 5152029 | Hydraulic hinge A hydraulic hinge that includes an elongated tubular member in which a first ring member with an axial opening and a downward projection is fixed and a second ring member having an opening aligned with the opening of the first ring member and a notched po... | 10/06/1992 |
| 4697302 | Spring operated automatic door and window closing hinge An automatic door/window closing device has a center shaft provided with V-shaped spiral channels to a base such as its surface and secured to a base such as the ground, a floating piston which forms a screw pair with the shaft by engagement of steel ball... | 10/06/1987 |
| 4325164 | Offset pivot hinges with door closing devices A door closing device which is easily mounted on, and easily removed from, an offset pivot hinge. The door closing device has an outer sleeve, an inner member rotatably mounted in the outer sleeve and a coil spring having opposite ends thereof connected t... | 04/20/1982 |
