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Class Information
Number: 16/DIG.9
Name: Miscellaneous hardware > Hydraulic actuated checks, closers
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7007341 |
Door closer |
Mar. 7, 2006 |
| 6442795 |
Damper for a pivot door |
Sep. 3, 2002 |
| 6434788 |
Door closer |
Aug. 20, 2002 |
| 6154924 |
Door closer unit |
Dec. 5, 2000 |
| 6112368 |
Temperature compensating valve |
Sep. 5, 2000 |
| 5842255 |
Door closers with automatic latching or/and delayed action |
Dec. 1, 1998 |
| 5657511 |
Piston-tpye door closer with adjustable closing speeds |
Aug. 19, 1997 |
| 5651162 |
Hydraulic door control system |
Jul. 29, 1997 |
| 5645333 |
Overhead door |
Jul. 8, 1997 |
| 5586361 |
Door stop, in particular for motor vehicle doors |
Dec. 24, 1996 |
| 5502874 |
Speed regulating valve for fluid filled door closers |
Apr. 2, 1996 |
| 5477589 |
Piston-type door closer with adjustable closing speeds |
Dec. 26, 1995 |
| 5170530 |
Door closer |
Dec. 15, 1992 |
| 5079797 |
Cabinet lid stay |
Jan. 14, 1992 |
| 5048150 |
Door holder |
Sep. 17, 1991 |
| 5012551 |
Furniture hinge |
May. 7, 1991 |
| 5001809 |
Door apparatus with damper switch |
Mar. 26, 1991 |
| 4999872 |
Door closer |
Mar. 19, 1991 |
| 4937913 |
Door closer |
Jul. 3, 1990 |
| 4847946 |
Hydraulic door closer |
Jul. 18, 1989 |
| 4829628 |
Spring biased hinge having a damper and a sliding piston |
May. 16, 1989 |
| 4773125 |
Door closer |
Sep. 27, 1988 |
| 4744125 |
Door closer transmission including an eccentric pinion |
May. 17, 1988 |
| 4733436 |
Door mechanism spring assembly |
Mar. 29, 1988 |
| 4697302 |
Spring operated automatic door and window closing hinge |
Oct. 6, 1987 |
| 4670939 |
Device for holding a door open with permanent magnet actuated ball valve affecting hydraulic cylinder |
Jun. 9, 1987 |
| 4669147 |
Door closer |
Jun. 2, 1987 |
| 4663800 |
Holding device for door closers |
May. 12, 1987 |
| 4660250 |
Door closer |
Apr. 28, 1987 |
| 4648151 |
Jamb plate for door closer |
Mar. 10, 1987 |
| 4638528 |
Oil type damper |
Jan. 27, 1987 |
| 4576252 |
Rotation damper |
Mar. 18, 1986 |
| 4550470 |
Combined rotary damper device including a stored energy mechanism and braking mechanism |
Nov. 5, 1985 |
| 4506407 |
Releasable hold-open device for a door closer |
Mar. 26, 1985 |
| 4502180 |
Door control device having piston assembly with separately formed rack |
Mar. 5, 1985 |
| 4489640 |
Door operating apparatus |
Dec. 25, 1984 |
| 4485522 |
Door-closing hinge having a spring and pin mechanism |
Dec. 4, 1984 |
| 4483043 |
Automatic door closer |
Nov. 20, 1984 |
| 4457498 |
Force balanced die cylinders |
Jul. 3, 1984 |
| 4426752 |
Rotor movement damping device |
Jan. 24, 1984 |
| 4376323 |
Automatic door closer |
Mar. 15, 1983 |
| 4342135 |
Device for moderating movement of lid |
Aug. 3, 1982 |
| 4285094 |
Door closing apparatus |
Aug. 25, 1981 |
| 4231134 |
Automatic door closing arrangement |
Nov. 4, 1980 |
| 4180888 |
Door closer |
Jan. 1, 1980 |
| 4178655 |
Counterbalance mechanism |
Dec. 18, 1979 |
| 4075734 |
Door closer |
Feb. 28, 1978 |
| 4073033 |
Door closing device |
Feb. 14, 1978 |
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