Swimming pool contraction-expansion joint

Details Swimming pool contraction-expansion joint Swimming pool contraction-expansion joint

1988-12-21

1990-03-06

Massie, Jerome W.

Road structure, process, or apparatus

Pavement

Including joint means

404 69, E01C 1110

Patent

active

049061291

ABSTRACT:
A polymer plastic contraction-expansion joint element for the aggregate decking areas of a swimming pool. The element when used as a contraction joint is comprised of an elongated generally hollow body adapted for burial in the aggregate just below grade level. The body is formed of a bottom wall and parallel spaced apart upright sidewalls terminating at their upper distal ends in an open pocket including longitudinal protuberances oppositely extending along the inner face of the sidewalls. Adapted to overlie the body pocket at grade level in a removable mounting relation thereto is an imperforate polymer plastic cover having elongated skirts downwardly depending from the opposite longitudinal side edges thereof. The skirts are insertable between the body protuberances in a springlike interfit enabling the cover to be removed and replaced as appropriate. When used as an contraction-expansion joint, the element includes a second generally hollow body mounted onto the underside of the first body for increasing the burial depth within the aggregate.

REFERENCES:
patent: 2042408 (1936-05-01), Lawrence
patent: 2100238 (1937-11-01), Burgess
patent: 3411260 (1968-11-01), Dill
patent: 3896597 (1975-07-01), Deason
patent: 4346542 (1982-08-01), Tateno
patent: 4548009 (1985-04-01), Dahowski
patent: 4815888 (1989-03-01), Stegmeier
patent: 4841704 (1989-06-01), Jarrell

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