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Class Information
Number: 14/71.3
Name: Bridges > Gangway, ramp, or dock leveler > Attached > With lift means
Description: Bridging structure including means to force at least a portion of the person or material supporting structure in a vertical direction for repositioning of the gangway to properly relate to the disassociated bases.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4776052 |
Vertically stored dockboard |
Oct. 11, 1988 |
| 4727613 |
Dock leveler |
Mar. 1, 1988 |
| 4718136 |
Dockboards |
Jan. 12, 1988 |
| 4703534 |
Hold-down mechanism for a dock leveller |
Nov. 3, 1987 |
| 4689846 |
Dock leveler apparatus |
Sep. 1, 1987 |
| 4682382 |
Weather seal for a loading dock pit |
Jul. 28, 1987 |
| 4674601 |
Accessor |
Jun. 23, 1987 |
| 4670928 |
Transfer bridge |
Jun. 9, 1987 |
| 4665579 |
Counterbalancing mechanism for an edge-of-dock dockboard |
May. 19, 1987 |
| 4662021 |
Dockboard with a tread plate lock mechanism |
May. 5, 1987 |
| 4660800 |
Bridge overhang bracket and hanger |
Apr. 28, 1987 |
| 4649587 |
Pickaback bridge spans for use with an inversion-launch bridgelayer |
Mar. 17, 1987 |
| 4574543 |
Truck bay door apparatus |
Mar. 11, 1986 |
| 4570277 |
Leveler assembly |
Feb. 18, 1986 |
| 4559659 |
Power operated wheelchair ramp |
Dec. 24, 1985 |
| 4557008 |
Dock leveler seal construction |
Dec. 10, 1985 |
| 4551877 |
Ramp bridging device |
Nov. 12, 1985 |
| 4531248 |
Dockboard assembly |
Jul. 30, 1985 |
| 4525887 |
Counterbalancing mechanism for the ramp of a dockboard |
Jul. 2, 1985 |
| 4501042 |
Front-of-dock dockboard |
Feb. 26, 1985 |
| 4498836 |
Loading ramp for truck bed |
Feb. 12, 1985 |
| 4488325 |
Truck locking device |
Dec. 18, 1984 |
| 4455703 |
Dockboard assembly |
Jun. 26, 1984 |
| 4449263 |
Powered folding support structure |
May. 22, 1984 |
| 4422199 |
Dockboard seal |
Dec. 27, 1983 |
| 4420849 |
Ramp bridging device |
Dec. 20, 1983 |
| 4411037 |
Automatic device for lap joint connection on the intrados or extrados of two bridge elements and method for the carrying out thereof |
Oct. 25, 1983 |
| 4402100 |
Lip counterbalancing mechanism for a dockboard |
Sep. 6, 1983 |
| 4398315 |
Yieldable and releasable lip lifting mechanism for a dockboard |
Aug. 16, 1983 |
| 4379354 |
Releasable locking device |
Apr. 12, 1983 |
| 4376319 |
Maintenance lip lock |
Mar. 15, 1983 |
| 4366591 |
Automatic safety gangplank |
Jan. 4, 1983 |
| 4364137 |
Releasable locking device |
Dec. 21, 1982 |
| 4348780 |
Apparatus for elevating a mobile rig |
Sep. 14, 1982 |
| 4328602 |
Safety leg construction for a dockboard |
May. 11, 1982 |
| 4304518 |
Aircraft loader |
Dec. 8, 1981 |
| 4279050 |
Leg latch for in-pit dock levelers |
Jul. 21, 1981 |
| 4257136 |
Hold-down device for dockleveller |
Mar. 24, 1981 |
| 4257137 |
Dock leveler |
Mar. 24, 1981 |
| 4224709 |
Transloading bridge for ramps |
Sep. 30, 1980 |
| 4222140 |
Boarding platform |
Sep. 16, 1980 |
| RE30250 |
Electromechanically operated dockboard |
Apr. 8, 1980 |
| 4186901 |
Cargo ramp hoist mechanism |
Feb. 5, 1980 |
| RE30104 |
Dock leveling apparatus |
Oct. 2, 1979 |
| 4155468 |
Vehicle mounted access ramp assembly for wheel chair users |
May. 22, 1979 |
| 4142640 |
Device for retracting or extending a movable access ramp |
Mar. 6, 1979 |
| 4137587 |
Dockboard apparatus |
Feb. 6, 1979 |
| 4133067 |
Articulating gangway |
Jan. 9, 1979 |
| 4126909 |
Torsion hold-down |
Nov. 28, 1978 |
| 4127201 |
Collapsible loading ramp or the like |
Nov. 28, 1978 |
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