Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent
1990-12-12
1991-10-29
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Wall- or floor-attached
182113, 182230, A47C 1600
Patent
active
050607545
ABSTRACT:
A back support is used by a user in a standing or leaning position and has a back rest that can be adjusted to the proper height and oriented to support the user's low back. The back support has a forward bias so that when the user leans against it, the support means rearward and when the user separates from it the support moves forward to a rest position. The back rest can be used for brief rest periods for workers who are normally in a standing position during an entire shift. The back support can also be used by a worker who can lean against the back rest while working. In an assembly line job, there is often insufficient time for a worker to actually sit down to rest while waiting for another work piece. With the present invention, the worker can rest easily for very brief periods of time.
REFERENCES:
patent: 3976155 (1976-08-01), Esch
patent: 4458784 (1984-07-01), Holmes
patent: 4493393 (1985-01-01), Serber
patent: 4727958 (1988-03-01), Botello
patent: 4964487 (1990-10-01), Webb
patent: 5022622 (1991-06-01), Schaevitz
Machado Reinaldo P.
Schnurr Daryl W.
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