Joints and connections – Manually releaseable latch type – Having operating mechanism
Patent
1997-05-19
1998-10-27
Stodola, Daniel P.
Joints and connections
Manually releaseable latch type
Having operating mechanism
403321, 403103, 403 97, 16308, 16341, B25G 318
Patent
active
058270051
ABSTRACT:
An elbow joint assembly including two elbow joints mounted on two opposite ends of a shaft around a screw rod, each elbow joint including a fixed elbow having a barrel raised from the periphery and fixed to a locating rod of a mechanism, two movable elbows turned about the shaft and having a respective barrel raised from the periphery and holding a respective rod, two constraint blocks mounted on the shaft and forced to hold down the movable elbows and the fixed elbow in between the movable elbows, two spring elements mounted around the shaft between the movable elbows and the constraint blocks to force them apart; and two levers respectively pivoted to the shaft and turned between a first position in which the constraint blocks are forced into engagement with the movable elbows, causing the movable elbows and the fixed elbow to be firmly retained in position, and a second position in which the constraint blocks are released from the movable elbows, for permitting the movable elbows to be respectively turned about the shaft to the desired angle.
REFERENCES:
patent: 3317225 (1967-05-01), Cooper
patent: 4582445 (1986-04-01), Warshawsky
patent: 4614452 (1986-09-01), Wang
patent: 5039118 (1991-08-01), Huang
patent: 5314500 (1994-05-01), Weddendorf
patent: 5377368 (1995-01-01), Cheng
patent: 5520474 (1996-05-01), Liu
Lev Bruce A.
Stodola Daniel P.
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