Patent · US Expired

Porous solenoid structure

US6295662A · kind A · utility

26Cited by

23References

22Claims

0Family size

Assignee

Softub, Inc. · US

Inventors

Carsten H. Idland · Los Angeles, US
Roc V. Fleishman · Calabasas, US
Peter J. Abdelkerim · Los Angeles, US

Key dates

Filing date	Aug 2, 1999
Grant date	Oct 2, 2001
Priority date	—
Expiry date	Aug 2, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B43/04
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A spa water delivery system comprising a reciprocating pumping structure to pump water for reception in a spa zone; and driver structure, including a solenoid body element and a solenoid plunger element, the elements being relatively movable; at least one of the elements containing passage structure to receive water in communication with water to be pumped to the zone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.