Ships – Boats – boat component – or attachment – Deck or gunwale attachment
Patent
1999-03-29
2000-09-05
Swinehart, Ed
Ships
Boats, boat component, or attachment
Deck or gunwale attachment
114201R, B63B 1700
Patent
active
061126942
ABSTRACT:
A deck box for mounting within the opening in the deck of a marine vessel. The deck box includes a cylindrical housing, a circular cover for closing the open upper end of the housing, and elements for securing the cover within the housing. The securing elements include a radially extending locking tongue carried by, and beneath, the cover, and an arcuate groove located within the housing, the groove extending for less than the full circumference of the housing interior. The groove has a tongue-entry end and a tongue-locking end, and a downwardly facing cam surface inclined downwardly from the entry end toward the locking end of the groove. When the cover is inserted into the housing with the locking tongue at the entry end of the groove, rotation of the tongue causes it to slide along the cam surface of the groove and draw the cover downwardly into the housing. The cam surface of the groove has a latch point between its entry and locking ends, at which the cam surface becomes inclined upwardly, thereby defining a locking position for the tongue between the latch point and the locking end of the groove. An O-ring, between the cover and shell, is compressed as the cover moves into the shell and serves to urge the tongue against the cam surface. The cover includes an outer ring and an inner disk rotatable within the ring, the tongue being fixed to the disk. A conventional deck box having a housing formed with an internal screw thread can be retrofitted with an adapter ring having an external screw thread cooperable with the internal screw thread of the shell, and an internal groove cooperable with a tongue carried by the cover.
REFERENCES:
patent: 4203686 (1980-05-01), Bowman
patent: 4280434 (1981-07-01), Beckerer, Jr.
patent: 4334630 (1982-06-01), Bergin
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