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Class Information
Number: 182/2.11
Name: Fire escape, ladder, or scaffold > Means maintaining platform level on angularly movable support > Swingable support > Telescopic support
Description: Device comprising a linearly extensible and retractable boom which is relatively movable to increase or decrease its end-to-end length to raise or lower the work platform.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7407038 |
Lifting framework for an industrial truck |
Aug. 5, 2008 |
| 7246684 |
Boom lift vehicle and method of controlling boom angles |
Jul. 24, 2007 |
| 7128186 |
Airport bridge people lift |
Oct. 31, 2006 |
| 6543578 |
Analog control |
Apr. 8, 2003 |
| 6460652 |
Boom arrangement for rock drilling apparatus |
Oct. 8, 2002 |
| 6439341 |
Apparatus for monitoring loading of a lift |
Aug. 27, 2002 |
| 6390312 |
Lift structures and lifting arrangement therefor |
May. 21, 2002 |
| 6325749 |
Robot vehicle for hot-line job |
Dec. 4, 2001 |
| 6276488 |
Crane extension system |
Aug. 21, 2001 |
| 6170606 |
Analog control |
Jan. 9, 2001 |
| 6024191 |
Lift apparatus having an articulated double parallelogram boom assembly |
Feb. 15, 2000 |
| 5727645 |
Aerial lift including a detachable end-hung basket |
Mar. 17, 1998 |
| 5538207 |
Boom-mountable robotic arm |
Jul. 23, 1996 |
| 5286159 |
Mobile vehicular apparatus with aerial working device |
Feb. 15, 1994 |
| 5268591 |
Upper power supply arrangement for mobile vehicular apparatus with aerial platform |
Dec. 7, 1993 |
| 5249643 |
Vehicular self-propelled aerial work platform and telescoping parallelogram boom therefor |
Oct. 5, 1993 |
| 5249642 |
Lifting apparatus |
Oct. 5, 1993 |
| 5211259 |
Lifting apparatus |
May. 18, 1993 |
| 5113969 |
Displaceable working platform with extensible boom |
May. 19, 1992 |
| 5107954 |
Control device for mobile vehicular apparatus with aerial platform |
Apr. 28, 1992 |
| 5062245 |
Telescopic beam |
Nov. 5, 1991 |
| 5021917 |
Control panel power enabling and disabling system for aerial work platforms |
Jun. 4, 1991 |
| 4979588 |
Overhead impact sensing system |
Dec. 25, 1990 |
| 4962827 |
Extendable, elevatable, rotatable, collapsible boom and basket for vehicles |
Oct. 16, 1990 |
| 4946003 |
Mobile and aerial lift having offset boom support |
Aug. 7, 1990 |
| 4946027 |
Boom conveyor |
Aug. 7, 1990 |
| 4936414 |
Detachable self-contained-aerial-maintenance platform |
Jun. 26, 1990 |
| 4917213 |
Power transmission |
Apr. 17, 1990 |
| 4852690 |
Aerial ladder tower with pretensioned truss members |
Aug. 1, 1989 |
| 4809472 |
Carrier track assembly for extensible and retractable boom machines |
Mar. 7, 1989 |
| 4793437 |
Portable lift with telescopic booms and load-carrying apparatus |
Dec. 27, 1988 |
| 4784278 |
Lock mechanism for crane device |
Nov. 15, 1988 |
| 4775029 |
Collapsible tower boom lift |
Oct. 4, 1988 |
| 4744718 |
Aircraft service vehicle |
May. 17, 1988 |
| 4726445 |
Mobile lift |
Feb. 23, 1988 |
| 4721213 |
Equipment and method for installing apparatus at elevated locations |
Jan. 26, 1988 |
| 4706779 |
Transportable, twin telescopic arm platform hoist |
Nov. 17, 1987 |
| 4694930 |
Lifting apparatus |
Sep. 22, 1987 |
| 4691805 |
Lifting apparatus |
Sep. 8, 1987 |
| 4687073 |
Hydraulically elevatable access equipment |
Aug. 18, 1987 |
| 4676340 |
Telescopic boom assembly having high dielectric properties |
Jun. 30, 1987 |
| 4676339 |
Self-contained-aerial-maintenance platform |
Jun. 30, 1987 |
| 4657109 |
Attachment jib for cranes |
Apr. 14, 1987 |
| 4638887 |
Elevating apparatus |
Jan. 27, 1987 |
| 4625830 |
Work platform centering apparatus |
Dec. 2, 1986 |
| 4589519 |
Vehicle mounted fire escape chute |
May. 20, 1986 |
| 4580659 |
Combination fire escape tube and rescue vehicle |
Apr. 8, 1986 |
| 4577725 |
Vehicle mounted fire escape chute |
Mar. 25, 1986 |
| 4561552 |
Attachment jib for cranes |
Dec. 31, 1985 |
| 4558758 |
Prime mover |
Dec. 17, 1985 |
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