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Class Information
Number: 182/2.1
Name: Fire escape, ladder, or scaffold > Means maintaining platform level on angularly movable support
Description: Device comprising a work station (e.g., bucket, cage, seat, etc.) intended to pivot about an axis generally parallel with the ground or support thereunder, with means to hold the work station in a level position regardless of the angle of inclination of the movable support relative to the ground.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7438305 |
Agricultural tractor with movable step |
Oct. 21, 2008 |
| 7182173 |
Material-handling device for aerial work platform |
Feb. 27, 2007 |
| 7004285 |
Load-sensing mechanism for aerial work apparatus |
Feb. 28, 2006 |
| 6823964 |
Fall arrest platform |
Nov. 30, 2004 |
| 6470999 |
Ergonomic insert for aerial bucket |
Oct. 29, 2002 |
| 6464037 |
Reconfigurable work platform for aerial work platform system, aerial work platform system using same, and method for reconfiguring a work platform |
Oct. 15, 2002 |
| 6330931 |
Fall protection system and method |
Dec. 18, 2001 |
| 6250423 |
Mobile lifting platform |
Jun. 26, 2001 |
| 6170607 |
Electrical hazard warning system for aerial devices |
Jan. 9, 2001 |
| 6170606 |
Analog control |
Jan. 9, 2001 |
| 6152264 |
Lift truck work platform with pivoting wings |
Nov. 28, 2000 |
| 6145619 |
Foldable personnel basket for mobile equipment |
Nov. 14, 2000 |
| 6012544 |
Aerial work platform with removably attachable support structure for auxiliary power plant |
Jan. 11, 2000 |
| 5944138 |
Leveling system for aerial platforms |
Aug. 31, 1999 |
| 5913379 |
Articulated aerial work platform system |
Jun. 22, 1999 |
| 5779002 |
Astronaut's work station device |
Jul. 14, 1998 |
| 5746286 |
Hydraulic boom platform leveling system |
May. 5, 1998 |
| 5727645 |
Aerial lift including a detachable end-hung basket |
Mar. 17, 1998 |
| 5611410 |
Aerial platform enclosure apparatus |
Mar. 18, 1997 |
| 5597050 |
Retaining and support assembly for machinery lift platforms |
Jan. 28, 1997 |
| 5427199 |
Self-propelled work platform and containment enclosure |
Jun. 27, 1995 |
| 5107955 |
Operation control mechanism of lifting apparatus |
Apr. 28, 1992 |
| 5076449 |
Load measurement system for boom mounted auxiliary arm |
Dec. 31, 1991 |
| 4957189 |
Lifting device |
Sep. 18, 1990 |
| 4799573 |
Adjustable personnel platform |
Jan. 24, 1989 |
| 4775029 |
Collapsible tower boom lift |
Oct. 4, 1988 |
| 4763758 |
Scuff pad with step |
Aug. 16, 1988 |
| 4657109 |
Attachment jib for cranes |
Apr. 14, 1987 |
| 4589518 |
Revolving block for high place working vehicle |
May. 20, 1986 |
| D283072 |
Self-propelled aerial work platform |
Mar. 18, 1986 |
| 4515244 |
Direction altering device |
May. 7, 1985 |
| 4466506 |
Wire lift device for high tension electric line |
Aug. 21, 1984 |
| 4334594 |
Aerial device |
Jun. 15, 1982 |
| 4331215 |
Controls for aerial lift platform apparatus |
May. 25, 1982 |
| 4271926 |
Rotatable work platform |
Jun. 9, 1981 |
| 4202427 |
Derrick escape system |
May. 13, 1980 |
| 4137994 |
Constant level scaffold adapted for use with a tilt bed truck |
Feb. 6, 1979 |
| 4116304 |
Aerial personnel lift including means for automatically controlling the position of the personnel bucket |
Sep. 26, 1978 |
| 4103757 |
Tripod aerial lift |
Aug. 1, 1978 |
| 4060148 |
Portable collapsible scaffold structure |
Nov. 29, 1977 |
| 4044902 |
Aerial lifting equipment |
Aug. 30, 1977 |
| 3994365 |
Apparatus for positioning person within container tank |
Nov. 30, 1976 |
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