Height adjusting mechanism for a physical therapy bench

Details Height adjusting mechanism for a physical therapy bench Height adjusting mechanism for a physical therapy bench

1987-08-20

1989-04-04

Grosz, Alexander

Beds

Sofa bed

Reverting back

5 11, 108145, 248421, 254122, 254124, A61G 700, A47C 3100

Patent

active

048172200

ABSTRACT:
A height adjusting mechanism for a physical therapy bench has great lifting height due to levers extending at an angle with each other in one end position which are made to coincide approximately midway in their movement, said movement being permitted to continue in said levers passing each other and in their other end position again extending at an angle with each other.

REFERENCES:
patent: 836397 (1906-11-01), McGough
patent: 2870460 (1959-01-01), Sanford
patent: 3174722 (1965-03-01), Alm
patent: 3743344 (1973-07-01), Jameson
patent: 3760436 (1973-09-01), Zach et al.
patent: 3991428 (1976-11-01), Hanson
patent: 4078269 (1978-03-01), Weipert

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