The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 1998
Filed:
May. 22, 1997
Applicant:
Inventors:
Thomas Hohmann, Hemer, DE;
Ingo Schafer, Ludenscheid, DE;
Assignee:
Calmar Inc., City of Industry, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B67D / ;
U.S. Cl.
CPC ...
222376 ; 222382 ; 2224815 ;
Abstract
A manually actuated liquid pump sprayer is capable of use in both upright and inverted positions without leakage through the vent port by the provision of a first slider valve which covers an inlet port in the upright position and which uncovers that port when the pump is inverted. A second slider valve located within the pump body is provided for uncovering the vent port in the upright position of spray, and for covering that vent port in the inverted position to avoid leakage.