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. 18, 1984
Filed:
Jul. 28, 1982
Michael P Ballone, New Providence, NJ (US);
Edward H Meisner, Short Hills, NJ (US);
EASCO Corporation, Baltimore, MD (US);
Abstract
An improved ergonomic handle for a hand tool or other implement has a substantially elliptical cross-section taken in a first plane which forms a dihedral angle of approximately thirty (30) degrees with respect to a second plane which is normal to the longitudinal axis of the shank of the tool. The length of the minor axis of the elliptical cross-section is approximately sixty percent (60%) of the length of the major axis. The longitudinal axis of the shank passes through the elliptical cross-section and through the line formed by the intersection of the first and second planes. The handle is formed substantially as a revolution of the elliptical cross-section about its major axis. As a result, the handle is well balanced and accommodates a variety of hand grips for various uses or orientations of the tool, and the handle is convenient and comfortable for substantially reducing operator fatigue over extended use of the tool. This is especially advantageous in connection with a hand ratchet tool.