The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 1981
Filed:
Apr. 30, 1979
Applicant:
Inventor:
Robert R Chambers, Studio City, CA (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04H / ; A47H / ;
U.S. Cl.
CPC ...
4502 ; 160 68 ; 160342 ;
Abstract
An assembly for covering a swimming pool when it is not in use. A roll member is rotatably mounted at one end of the pool for rolling up and unrolling a sheet of material of dimensions for covering the pool. A scissor type extension device moves the outer end of the sheet toward the other side of the pool when unwinding. The scissor device is moved between the retracted and extended positions by a rotating screw. An electrical motor rotates the screw and the roll member. A slide track mechanism submerges the entire assembly when rolled up.