Apparatus for decreasing opening velocities of support pillars

Details Apparatus for decreasing opening velocities of support pillars Apparatus for decreasing opening velocities of support pillars

2008-05-05

2009-08-25

Lyjak, Lori L (Department: 3612)

Land vehicles: bodies and tops

Tops

Load cover

C296S105000

Reexamination Certificate

active

07578539

ABSTRACT:
The invention relates generally to an apparatus for use with curtain side trailers, including a pillar with a hydraulic dampening device and two members, and providing a way for the pillar to be locked and released from lateral movement along a railing or framework. The invention is generally used as an intermediary support for the curtain and the roof, and extends from the trailer bed to the roof. Since the pillars can move laterally along the railing or framework once released and opened, the width for loading and unloading is increased. The dampening device of present invention helps with safety issues of prior inventions by decreasing the velocity of the opening pillar.

REFERENCES:
patent: 4265577 (1981-05-01), Loomis
patent: 4408793 (1983-10-01), Broadbent
patent: 4545611 (1985-10-01), Broadbent
patent: 4861094 (1989-08-01), Krueger
patent: 5524953 (1996-06-01), Shaer
patent: 5829823 (1998-11-01), Swenson
patent: 6502890 (2003-01-01), Fliege
patent: 7249796 (2007-07-01), Henning
patent: 2003/0067186 (2003-04-01), Cramaro
patent: 2005/0231004 (2005-10-01), Remmel
patent: 2007/0035153 (2007-02-01), Henning
2 pages from a website showing dampers, by AVM Industries LLC.
2 page flyer showing a Rolaload—published Apr. 18, 2006, by Roland Curtains USA Inc.

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