Air intake control valve member for swimming pools and spas

- Opaltech Pty. Ltd.

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Description

FIG. 1 is a side elevational view of an air intake control valve member for swimming pools and spas showing my new design;

FIG. 2 is top plan view thereof;

FIG. 3 is a bottom plan view thereof; and

FIG. 4 is a cross sectional view thereof taken on line 4--4 of FIG. 2.

Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D334616
Type: Grant
Filed: Jan 24, 1990
Date of Patent: Apr 6, 1993
Assignee: Opaltech Pty. Ltd. (Molendinar)
Inventor: Craig A. Nimmo (Queensland)
Primary Examiner: James R. Largen
Law Firm: Kimmel, Crowell & Weaver
Application Number: 7/469,833