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. 14, 1998
Filed:
Jan. 24, 1997
Applicant:
Inventor:
Floyd R French, Manchester, MO (US);
Assignee:
Clayton Corporation, Fenton, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
222327 ; 222389 ; 222386 ;
Abstract
There is disclosed a piston member for a container comprised of a piston body of a diameter smaller by at least about 0.3 cm. (0.012') than the diameter of the inner surface of the container and formed with an upwardly and outwardly extending conically-shaped wiping wall portion having a wiping edge in sliding contact with the inner surface of the container to permit flexing of the wiping edge over imperfections, such as dents or bumps in the container thereby substantially eliminating potential for piston member stall as well as more efficacious product dispensing.