Supports – Props and braces – Adjustable length
Patent
1989-10-11
1990-05-22
Chin-Shue, Alvin C.
Supports
Props and braces
Adjustable length
2481889, E04G 2500
Patent
active
049271091
ABSTRACT:
My invention represents an improvement over the prior art show identified in providing a combination of elements which interact in a novel way to exert a positive force to keep the boat cover taut without yielding under the rain or snow load as will happen in the Burns covers 2,390,986 and 2,474,031 as well as Wright 3,106,218. The structure of my device is provided with two end supports, one for contacting the boat floor and the other for bearing against the under side of the boat cover each support has a knurled or roughened end portion which acts as an anti-skid surface to assist the support in remaining in its installed erect condition.
My support device can be easily manually rotated about the central portion to extend its length and assure positive engagement with the cover and boat floor.
REFERENCES:
patent: 277146 (1883-05-01), Mansfield
patent: 412199 (1889-10-01), McIlhenny
patent: 763306 (1904-06-01), Miller
patent: 1130497 (1915-03-01), Dunham
patent: 2504392 (1950-04-01), Carter
patent: 3393846 (1968-07-01), Cannon et al.
patent: 4340075 (1982-07-01), Medeiros
Chin-Shue Alvin C.
Lechok Sarah A.
Theibault A. Robert
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