Robert Niven Walton has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A spool for use with a swimming pool cover or with a shade cover. The spool has a roller assembly, and a cover (not shown) may be wound onto the roller assembly or unwound from the assembly. The roller assembly has a pre-tensioned rubber strip that when viewed in transverse cross-section is substantially rectangular in shape and two opposing sides of the rectangle are notched. This strip is tensioned when the cover is unwound from the spool and a locking mechanism retains the cover in a desired unwound position against the tension of the rubber strip.
Type:
Grant
Filed:
June 14, 2002
Date of Patent:
November 18, 2003
Assignee:
Neumann Steel PTY Ltd.
Inventors:
Robert Niven Walton, Lawrence John Walton, Duncan B Gilmore, Nicholas D Agnew
Abstract: A spool (1) for use with a swimming pool cover or with a shade cover. The spool (1) has a roller assembly (4), and a cover (not shown) may be wound onto the roller assembly (4) or unwound from the assembly (4). The roller assembly (4) has a pre-tensioned rubber strip (22) that when viewed in transverse cross-section is substantially rectangular in shape and two opposing sides of the rectangle are notched. This strip (22) is tensioned when the cover is unwound from the spool (1) and a locking mechanism retains the cover in a desired unwound position against the tension of the rubber strip (22).
Type:
Application
Filed:
June 14, 2002
Publication date:
December 19, 2002
Inventors:
Robert Niven Walton, Lawrence John Walton, Duncan B Gilmore, Nicholas D Agnew
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