Pulley block

Details Pulley block Pulley block

2006-12-26

2006-12-26

Marcelo, Emmanuel M (Department: 3654)

Implements or apparatus for applying pushing or pulling force

Device or member for contacting and guiding moving cable

Including rotatable, cable contacting, pulley wheel element

C254S415000

Reexamination Certificate

active

07152847

ABSTRACT:
A pulley block has a body which rotatably supports a sheave, the block having a mounting pin which extends through a bore in the block. The pin has an enlarged head disposed internally of the body to retain the pin in the bore. Rotation of the pin may be prevented by a releasable locking arrangement comprising a groove formed transversely across the enlarged head of the pin and a lock member rotatably mounted in a hole extending within the block adjacent the head of the pin. The lock member is profiled for rotation between a locked position where a part of the lock member locates in the groove in the head of the pin to restrain rotation of the pin and a free position where the lock member is free of the head of the pin so that the pin may rotate.

REFERENCES:
patent: 691492 (1902-01-01), Roney
patent: 3526389 (1970-09-01), Horgan, Jr.
patent: 3528645 (1970-09-01), Harken
patent: 3773295 (1973-11-01), Holmes
patent: 3806094 (1974-04-01), Harken
patent: 3899158 (1975-08-01), Johnson
patent: 5984278 (1999-11-01), Hartlmeier
patent: 6974125 (2005-12-01), Renton
patent: 811599 (1959-04-01), None
patent: WO 03/008264 (2003-01-01), None

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