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Manual or pump assist fluid dispenser
   
Document Number
US Patent 7198175
Issued Date
April 3, 2007
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Inventors
Ophardt; Heiner (Vineland, Ontario,CA)
Map
Abstract
Liquid soap dispensers including a vacuum relief valve which comprises an enclosed chamber having an air inlet open to the atmosphere and a liquid inlet in communication with liquid in the reservoir and in which the liquid inlet opens to the chamber at a height below a height at which the air inlet opens to the chamber. The vacuum relief valve permits relief of vacuum from the reservoir without moving parts or valves. A chamber about an opening of an inverted container with an impeller within the chamber which, on rotation, dispenses fluid from the chamber.
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Number of Claims:
22
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Published
April 3, 2007
Application Number
10/810,615
Filed
March 29, 2004
US Classification
222/188   222/333 222/457 222/481.5 222/587
Int'l Classification
B67D   1/08   (20060101)  
Examiner
Assistant Examiner
Attorney/Law Firm
Parent Case
RELATED APPLICATION This application is a continuation-in-part of U.S. patent application Ser. No. 10/132,321 filed Apr. 26, 2002 now U.S. Pat. No. 6,957,751.
Priority Data
Jun 19, 2003 [CA] 2432814
USPTO Field of Search
222/481.5   222/181.1   222/181.3   222/183   222/182   222/333   222/383.2   222/410   222/457   222/587   415/206   417/424.2  
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