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:
Nov. 17, 1981
Filed:
Apr. 12, 1979
Applicant:
Inventors:
Charles E Cox, Norristown, PA (US);
Roger V Eeckhout, Warminster, PA (US);
Assignee:
SCM Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417 53 ; 99306 ; 99307 ; 417207 ;
Abstract
Pump chambers usable in beverage makers, for example, have a liquid-contacting heated surface provided with abrupt discontinuities--e.g. sharp edges or corners--to promote flaking-off of mineral deposits. These edges may be fins of rectangular or triangular cross-section.