Purex Pool Products, Inc.

Hydrotech Chemical Corporation

Joe Mendoza

Manochehr Gordbegli

Joseph Han

A valve structure for a swimming pool water filter includes:

Backwash valve lever control system

In an underwater pool or spa light assembly for retaining an annular lens gasket and light housing in position, comprises: (a) a face ring having a central axis and annular re-entrant wall defining an annular flared portion to seat the gasket assembly, the ring also having retainer structure to retain said light housing which is engageable with the gasket to annularly compress same axially, (b) and circularly spaced tabs on the ring and projecting generally axially beyond the edge of the annularly flared portion to peripherally position the gasket, blocking radially outward extrusion thereof when compressed by the housing.

Underwater light assembly with annularly flared re-entrant wall and

A light unit assembly adapted to illuminate liquid below a liquid surface (for example of a pool or spa) includes (a) a lamp unit including a metallic housing adapted to be cooled by heat transfer to the liquid, and lamp circuitry, (b) a thermostat coupled to the lamp circuitry to control electrical energization of the lamp, and (c) a heat conductive metallic strip associated with said housing and thermostat to become increasingly heated for changing the conductive state of the lamp in response to diminished cooling of the housing by said liquid.

Growing community of inventors

Garden Grove, CA, United States of America

Joe Mendoza