Chock

Ships – Bitts – cleats – and pin rails

Reexamination Certificate

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Reexamination Certificate

active

06234101

ABSTRACT:

BACKGROUND OF THE INVENTION
1. FIELD OF THE INVENTION
This invention relates generally to chocks and more particularly to chocks having a depressed or concealed position and a raised operative position.
2. DESCRIPTION OF THE PRIOR ART
No prior art was found relating to chocks having a depressed position and a raised operative position. Some prior art cleats have such positions; however their structures such as shown in my U.S. Pat. No. 4,809,634; 5,535,694 and 5,301,627 are entirely different than the structure of the present invention which is very compact durable and easily serviced.
SUMMARY OF THE INVENTION
A chock, having a conventional appearing slot in the upper end thereof for receiving a line, has a lower portion projecting downwardly therefrom and telescopically received in an opening of a base or housing portion; the later being adapted to be mounted on a boat hull in a non obtrusive manner. A poppet, carried by the base portion, can alternately engage or disengage a detent in the lower portion to thereby hold the chock in its upper position and, when in its lower position, the poppet acts as an anti rattle device. An abutting member is threaded into and carried by the base portion and engages an elongated grove in the lower portion to both limit vertical and rotational movement of the lower portion relative to the base. This abutting member is threaded into the base portion and can be screwed outwardly out of engagement with the groove to allow the upper portion of the chock to be removed from the base and can be screwed inwardly to fit in the elongated groove to perform at its function. As wear takes place, the abutting member can be adjusted.


REFERENCES:
patent: 1868580 (1932-07-01), McKinney
patent: 2729417 (1956-01-01), Maynard
patent: 2833240 (1958-05-01), Semolic
patent: 3111833 (1963-11-01), Dettmer
patent: 3215390 (1965-11-01), Shetler
patent: 3234765 (1966-02-01), Kerr
patent: 3917213 (1975-11-01), Poehlmann
patent: 4352336 (1982-10-01), Tostado
patent: 4672909 (1987-06-01), Sweetsir
patent: 4809634 (1989-03-01), Czipri
patent: 4820094 (1989-04-01), Hirakui et al.
patent: 4890566 (1990-01-01), Morris
patent: 4966018 (1990-10-01), Hauber
patent: 5004388 (1991-04-01), Harris
patent: 5106248 (1992-04-01), Harris
patent: 5301627 (1994-04-01), Czipri
patent: 5535694 (1996-07-01), Czipri
patent: 5983820 (1999-11-01), Whitley
patent: 6125779 (2000-10-01), Czipri

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