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.

Date of Patent:
Nov. 08, 1988

Filed:

Jan. 13, 1987
Applicant:
Inventors:

Francis E Ryder, Arab, AL (US);

Rowland W Kanner, Guntersville, AL (US);

Donald W Hunter, Guntersville, AL (US);

Timothy R White, Hanceville, AL (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81 574 ; 81 5724 ;
Abstract

Our lead screw driver comprises a drive head for engaging and driving a complementary driver head portion of a threaded fastener, and a manipulator for positioning the drive head and a fastener engaged therewith for alignment of the same for driving the fastener into a pilot hole at a given location in a workpiece. A motor rotates the drive head and a lead screw arrangement is operatively coupled with the drive head for advancing the same at a given rate corresponding to the thread pitch of the fastener to be driven thereby so as to minimize stresses upon the material of the workpiece during the driving of the fastener. Preferably, a brake is operatively coupled to the manipulator and this brake is selectively actuatable for holding the manipulator against movement of the manipulator means, to hold the fastener aligned with the pilot hole while driving the fastener.


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Ryder, Francis. (1988). Lead screw driver (U.S. Patent No. 4782726). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4782726

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