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:
May. 15, 1984
Filed:
Jan. 28, 1982
Applicant:
Inventors:
H Alfred Eberhardt, Paoli, PA (US);
Kenneth F Hoffman, Collegeville, PA (US);
Raymond R Petersen, Meadowbrook, PA (US);
Assignee:
Hale Fire Pump Company, Conshohocken, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A62C / ;
U.S. Cl.
CPC ...
169 15 ; 417405 ;
Abstract
A foam liquid proportioner including a positive displacement water motor coupled to a positive displacement foam liquid pump is provided with a gear drive mechanism which steps up the RPM of the foam liquid pump to be much higher than the RPM of the water motor to a speed so as to reduce the ratio of the slippage of foam liquid to the total flow of the foam liquid through the foam liquid pump.