Lockable articulating joint and a foldable stretcher frame inclu

Details Lockable articulating joint and a foldable stretcher frame inclu Lockable articulating joint and a foldable stretcher frame inclu

1992-07-09

1993-06-08

Reese, Randolph A.

Joints and connections

Articulated members

Lockable at fixed position

5627, 403 62, 403 78, 403100, 403117, 403165, F16D 112, F16C 1100

Patent

active

052173151

ABSTRACT:
An articulating joint is provided for use in a foldable frame for a stretcher for example, which is capable of being selectively locked against upward, downward, or lateral folding by rotating the joint relative to the folding frame member.

REFERENCES:
patent: 1906218 (1933-04-01), Patchell
patent: 2400155 (1946-05-01), Letschert et al.
patent: 2854261 (1958-09-01), Spaide
patent: 3655297 (1972-04-01), Bolen, Jr. et al.
patent: 3801208 (1974-04-01), Bourgraf et al.
patent: 4111574 (1978-09-01), Runyon
patent: 4538393 (1985-09-01), Mitchell
patent: 4611945 (1986-09-01), Diego
patent: 4711461 (1987-12-01), Fromberg
patent: 4865064 (1989-09-01), Parsons et al.
patent: 4934025 (1990-06-01), Mariol

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