Work holders – With fluid means – With movable diaphragm
Patent
1984-01-11
1986-02-18
Watson, Robert C.
Work holders
With fluid means
With movable diaphragm
269157, 269910, B30B 1500
Patent
active
045709130
ABSTRACT:
A clamping means is disclosed for use in clamping wooden chord and web members together in manufacturing wooden trusses. The clamping means uses an inflatable conduit to force an elongated clamp to a closed position.
REFERENCES:
patent: 2560902 (1951-07-01), Smith
patent: 2686960 (1954-08-01), Le Roy
patent: 3186173 (1965-06-01), Hogg
patent: 3237252 (1966-03-01), Ratcliffe
patent: 3345897 (1967-10-01), Parson
patent: 4143448 (1979-03-01), Caster et al.
patent: 4379426 (1983-04-01), Thompson et al.
Booth John F.
Crutsinger Gerald G.
Production Equipment & Engineering Co.
Ross Monty L.
Watson Robert C.
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