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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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Class Information
Number: 182/17
Name: Fire escape, ladder, or scaffold > Horizontal traversing - actuation, control, or response > Holding means
Description: Device with means to prevent traversing.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8662252 Leveling system for portable work platforms Mar. 4, 2014
8459412 Portable scaffold system Jun. 11, 2013
7841447 Ladder with removable step and method of storing the ladder in a compact container Nov. 30, 2010
7828115 Weight-releasing ladder lockstep Nov. 9, 2010
7753169 Wheeled support platform for a stepladder Jul. 13, 2010
7614480 Portable orchard ladder support Nov. 10, 2009
7228936 Mobile scaffolding braking system Jun. 12, 2007
6962233 Mobile ladder stand Nov. 8, 2005
6938730 Buddy's adjustable height workhorse Sep. 6, 2005
6932194 Safety rail for scaffolding Aug. 23, 2005
6871892 Apparatus to lock and unlock scaffold casters Mar. 29, 2005
6688426 Wheel extension and lift device for ladders Feb. 10, 2004
6523640 Undercarriage for mobile ladders and platforms Feb. 25, 2003
6516917 Outrigger assembly for a mobile telescopic belt conveyor Feb. 11, 2003
6305496 Safety mobile ladder stand Oct. 23, 2001
6283249 Mobile ladder with lifting tray Sep. 4, 2001
6216818 Mobile ladder including a goods lift Apr. 17, 2001
6179087 Ladder Jan. 30, 2001
6173810 Trailer personnel lift with a level sensor and manually set outriggers Jan. 16, 2001
6039147 Mobile ladder stand Mar. 21, 2000
6026931 Support frame assembly Feb. 22, 2000
5941341 Mobile ladder stand Aug. 24, 1999
5937967 Mobile scaffolding apparatus with retractable wheels Aug. 17, 1999
5934409 Trailer personnel lift with a level sensor and manually set outriggers Aug. 10, 1999
5860489 Travelling scaffolding Jan. 19, 1999
5819872 Mobile scaffolding Oct. 13, 1998
5791434 Mobile warehouse ladder Aug. 11, 1998
5653306 Ladder system including a caster bracket and method of forming Aug. 5, 1997
5641034 Step stool having integral side storage compartments Jun. 24, 1997
5411111 Rolling stairway May. 2, 1995
5228534 Portable scaffold apparatus Jul. 20, 1993
5148889 High level package retrieval system Sep. 22, 1992
5111907 Lifting apparatus May. 12, 1992
5082086 Wheeled ladder Jan. 21, 1992
5080192 Ladder with warning gate Jan. 14, 1992
5022490 Safety base for scaffolding Jun. 11, 1991
4949808 Aerial apparatus and stabilizing means therefor Aug. 21, 1990
4941546 Aerial ladder rotation limiter Jul. 17, 1990
4923050 Ladder support May. 8, 1990
4919229 Stable working platform Apr. 24, 1990
4877107 Mobile scaffolding system and scaffold support Oct. 31, 1989
4834215 Leveling aerial device-motor vehicle assembly May. 30, 1989
4777751 Portable illuminated signal person station Oct. 18, 1988
4768617 Adjustable stairway having retractable wheel carriage Sep. 6, 1988
4726445 Mobile lift Feb. 23, 1988
4690248 Portable hoist Sep. 1, 1987
4620608 Rolling scaffolding base Nov. 4, 1986
4545628 Tool chest with retractable step Oct. 8, 1985
4519475 Scaffolding May. 28, 1985
4442919 Portable tower Apr. 17, 1984

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