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. 16, 1978
Filed:
Sep. 30, 1976
Applicant:
Inventors:
Robert X Hafele, Baton Rouge, LA (US);
Lewis C LoMaglio, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
222321 ; 222385 ;
Abstract
A finger-operated spray pump assembly including a compression chamber, a primary piston and a secondary piston slidably fitted inside the compression chamber, a spring fitted inside the secondary piston for urging the secondary piston toward the primary piston, and a valve slidably connected to the secondary piston.