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:
Feb. 17, 1987
Filed:
Mar. 21, 1985
John A Badiali, Brockton, MA (US);
Custom Spec Engineering, Inc., Brockton, MA (US);
Abstract
A bevel gear driven offset screwdriver arrangement includes a housing which bounds an elongated passage and an opening which communicates with the passage and is centered on an axis that includes an obtuse angle of substantially between 100.degree. and 135.degree., preferably 105.degree., with the axis of the passage. A shaft is rotatably received in the passage and carries at its end close to the opening a first bevel gear which meshes with a second bevel gear that is rotatably received in the opening. The housing is constituted by two separate half-shell sections which are held together by two holding rings that are slid onto semi-tubular regions of such sections and urge the latter together, as well as by screws. The second bevel gear has a central recess of a non-circular cross-sectional configuration, and a compatibly configurated support portion of a bit element is received in this recess and entrained for joint turning with the second gear element. A magnetic element accommodated in the housing cooperates with the support portion of the bit element, which is of a magnetically attractable material, to hold the support portion in the central recess against falling out of it in the axial direction. The magnetic element simultaneously serves as a thrust bearing for the bit element during the use of the arrangement.