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:
Jan. 26, 1999
Filed:
Jan. 29, 1997
Applicant:
Inventor:
Dan E Holman, Rutherfordton, NC (US);
Assignee:
AFA Products, Inc., Forest City, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67D / ;
U.S. Cl.
CPC ...
2223831 ; 222385 ; 2223217 ; 2223219 ;
Abstract
The trigger sprayer comprises a trigger sprayer body having a cylinder therein, a trigger movably mounted to the trigger sprayer body, and the improvement of a piston assembly including a piston body having an unobstructed annular space for receiving an O-ring and an O-ring mounted in the unobstructed annular space for sealing between the piston body and an inner wall in the cylinder in the trigger sprayer body. Preferably, the piston body is formed from two parts which are pressed together to form the unobstructed annular space between the parts for receiving the O-ring.