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| Number | Title | Issue Date |
| 7293328 | Device for closing a door A device for closing a door, including a spring element, an attachment element for fixing the device to a door, and an actuation element. The actuation element and the attachment element are linked at opposite ends of the spring element in such a way that, when the ... | 11/13/2007 |
| 7257862 | Decelerating device for insertion between two relatively rotating members, in particular a drum and an oscillating door for loading the drum in a top-loaded washing machine A decelerating device includes a bushing and a pin carried coaxially by the bushing. A first end of the pin is housed inside the bushing and a second end of the pin, opposite to the first end, projects axially in cantilever fashion from the bushing. Inside the bushi... | 08/21/2007 |
| 7258153 | Auto-reversible folding door An auto-reversible folding door includes a sliding rail, a first door panel and a second door panel. The first door panel and the second door panel are pivotally connected, the top of the outer flange of the first door panel is pivotally coupled within the sliding r... | 08/21/2007 |
| 7111358 | Tensioned pivot assembly A spring biased pivot assembly for operative connection across a lower edge of a self-returning door structure. An adjustable spacer projects outwardly from a downwardly extending shoulder structure and towards a tension pin in tangential relation to the axis of rot... | 09/26/2006 |
| 6978998 | Positioning structure of roller adapted for an auto document feed apparatus A positioning structure of a roller adapted for auto document feed apparatus includes a flexible shaft and a flexible arm. The flexible arm has a first portion integrally formed with the flexible shaft, a second portion arranged into a clamping portion of auto docum... | 12/27/2005 |
| 6976289 | Door closer with door arresting mechanism A door closer having a door arresting mechanism to arrest a door in an opened position that includes a cylinder and piston assembly wherein the arresting mechanism includes a cam member having an arresting dwell cam profile and an indexing profile, and an associated... | 12/20/2005 |
| 6802105 | Spring balance assembly The present invention provides a spring balance assembly for use with a sash window. The spring balance assembly comprises a plate, clip, pivot brake assembly, and first and second coil springs. The plate has a first portion, second portion, and a generally perpendi... | 10/12/2004 |
| 6735820 | Apparatus for closing sliding doors An automatic door closer for a sliding door. The closer has a reel with a cable extending around a pulley on the end of the rod of a return mechanism. In preferred embodiments, the return mechanism is an oil dammed gas spring or a magnetic spring. A spool rotates on... | 05/18/2004 |
| 6728992 | Retractable door system A retractable door system for returning to a nearly closed position a door that has been opened having: a catch knob secured to a doorframe; a housing secured to a door; a retractable cord anchored within the housing at one end and having means for attaching to the ... | 05/04/2004 |
| 6725503 | Door closer having dual operating directions A door closer includes a housing having one or more bulges, a shaft rotatably received in the housing and having an axle, and one or more resilient rings engaged between the shaft and the housing. The bulges of the housing may be engaged with the resilient rings for... | 04/27/2004 |
| 6477736 | Gate closer apparatus A gate closer apparatus is provided in the form of a coil spring arranged to be installed onto a selected one of the corresponding, hinge-mounting, vertically extending gate post or gate frame members of a fence gate arrangement, the coil spring member fi... | 11/12/2002 |
| 6240598 | Arrangement for controlling an angularly movable member A control mechanism for use with a door closer, comprises a shaft (10), angularly movable between a normal position and a second position, the shaft (10) having a first portion (21a) and a second portion (21b), a brush spring (35) attached to the shaft fi... | 06/05/2001 |
| 5749122 | Interior door closer and method A hidden door closer is based upon the positioning of a torsional spring adjacent the hinge edge of a door, which door has a hollow interior hidden closer portion with a closer mounted in an access opening so that the torsional spring and its housed assem... | 05/12/1998 |
| 5406687 | Door closure apparatus and method A door closure apparatus is provided for lightweight screen doors and the like as are used on recreational vehicles, campers and motor homes. The method of attachment of the closure apparatus includes a pair of spaced apart coil springs which are affixed ... | 04/18/1995 |
| 5383253 | Hydraulic buffer hinge A hydraulic buffer hinge for a door comprising a hydraulic buffer mechanism having a piston and a piston rod supported on a spring and received inside a hydraulic oil container to slowing down the return stroke of two swinging plates when the door, onto w... | 01/24/1995 |
| 5191678 | Wind resistant door hardware A spring loaded door hinge comprising a rod that moves with the door as the door pivots. Attached to the door frame is a flange. The door is attached to the rod by means of collars. The tails of the coil springs extend from the rod so that they may, depen... | 03/09/1993 |
| 4971378 | Pivoted automobile partition with adjustable spring bias A pivoted automobile partition is described including an adjustable spring bias means for adjusting the force of a coil spring which pivots the partition from a lowered position to a raised position. The adjustment means includes a threaded pivot shaft wh... | 11/20/1990 |
| 4901396 | Ice discharge apparatus of ice dispenser An ice discharging apparatus of an ice dispenser comprises an openable door normally urged resiliently to a closed state by means of a torsion coil spring and adapted to be openable by a door actuator under the control of a control apparatus. The torsion ... | 02/20/1990 |
| 4825503 | Braking apparatus for door closer An improved door closer which prevents overly rapid closing due to an external force, such as wind pressure, being exerted on the door. A pair of oil holes are formed communicating with a first pressure chamber and a non-pressure chamber formed in the mai... | 05/02/1989 |
| 4785493 | Door check A door check wherein a housing is affixed to the pivotable panel and a guide rail is affixed to the frame of a door. The housing contains a shaft which is rigidly connected with one end of an arm the other end of which is slidably guided by the rail. The ... | 11/22/1988 |
| 4756051 | Door-closer hinge with rotary-movement shock absorber A door-closer hinge includes a first flap secured to a door, a second flap secured to a door frame, and an automatic closer as restored by a restoring spring and having a longitudinal casing secured to the second flap, in which a rotor vane fixed on a rot... | 07/12/1988 |
| 4731902 | Door and gate spring A coil spring has elliptical openings in the end turns for non-rotatably receiving elliptically shaped studs which are press-fitted into the spring, the ends being respectively attached to a pair of mounting brackets.... | 03/22/1988 |
| 4709445 | Method and apparatus for closing a door An apparatus for closing a door (14), the door closer assembly (10) preferably including a torsional spring unit (12) and a pneumatic check device (22). The torsional spring unit (12) can be attached to a door frame (16) through the use of a bracket (20) ... | 12/01/1987 |
| 4649597 | Automatic gate closure apparatus Gate closure apparatus for closing a gate mounted pivotably on a gate post, such apparatus for connection to the gate and gate post and for developing and storing energy upon opening of the gate, and upon release of the gate, the gate closure apparatus fo... | 03/17/1987 |
| 4583708 | Hanger equipment for printed matter such as telephone directories A vertical support shaft projects down from the underside of a telephone booth shelf and supports the inner end of an arm swivelable horizontally about the shaft. The outer end of the arm is hingedly coupled to a telephone directory binder so that the bin... | 04/22/1986 |
| 4514878 | Reversible adjustable torsion door closer A torsion spring door closer assembly for use with a in-swinging, out-swinging, right-handed or left-handed door. The door closer assembly is reversible so that it can be easily adapted to the various door styles above. Further, the closing force provided... | 05/07/1985 |
| 4439946 | Booster springs for coil spring trap An accessory for coil spring traps utilized in enhancing the spring strength of the trap and including a spring mounting frame capable of accommodating either one or two booster springs. The spring mounting frame includes a base bar with a pair of lateral... | 04/03/1984 |
| 4419787 | Door closer assist linkage A control linkage for use with a door closer, wherein the linkage is provided with a spring which resiliently biases against relative rotation of a pair of arms as the arms approach a door-open limit position, and which aids the door closer in moving the ... | 12/13/1983 |
| 4413373 | Pivot hinge with removable door closing device A pivot hinge for supporting the top end of a door has a door closing device which is readily attached to, and removed from, the pivot hinge. A pivot shaft is fixed by a screw to a seat plate to be secured to a door frame and a door supporting plate is pi... | 11/08/1983 |
| 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 |
| 4149295 | Door return apparatus Apparatus for automatically returning a door hinged in a doorway. The apparatus includes an arm extending from the door and an elongated resilient member engaging the arm and having both ends anchored to the doorway. When the door is opened, the resilient... | 04/17/1979 |
| 3975794 | Spring hinge A cam rise hinge has a swingable strap portion which is cammed up relative to a stationary butt portion when a door on which the strap portion is mounted is swung towards its open position. A coiled wire torsion-compression spring is positioned and mounte... | 08/24/1976 |
