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:
Dec. 06, 1994
Filed:
Feb. 20, 1992
Steve J Lackie, Lexington, MA (US);
Sapidyne, Inc., Boise, ID (US);
Abstract
A hand press which includes a first lever arm having adjacent one end thereof a hollow receptacle having one end opened, the other end covered by a perforated screen, and a second lever arm pivotally mounted at the one end of the first lever arm. A piston is fixededly positioned on the second arm for insertion into the open end of the receptacle, the receptacle typically being shaped as a toroidal segment having its axis of elongation conforming to an arc having a mean radius of curvature defined by the distance between the pivot point and the center of the face of the piston. The periphery of the piston face is provided with a ring to insure a tight sliding fit of the piston in the receptacle.