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:
Aug. 27, 1996
Filed:
Apr. 26, 1994
James D Schroeder, St. Peters, MO (US);
George E Hendrix, Florissant, MO (US);
Emerson Electric Co., St. Louis, MO (US);
Abstract
A combined motor and mechanical drive that is used with an oscillating spindle sander is disclosed. The oscillating spindle sander has a worktable for supporting a workpiece. A spindle extends upwardly through the worktable and has a sanding surface. An electrical motor is supported by the worktable and includes a shaft for imparting rotational motion to the spindle. The mechanical drive is contained within a housing that is supported by the motor and is connected to the motor shaft for imparting reciprocal or axial motion in addition to rotary motion to the spindle. The mechanical drive includes a speed reducer that is coaxial with the motor shaft. The speed reducer drives a cam follower that engages a cam in the housing for imparting reciprocal motion to the spindle at a rate much less than the rotational speed imparted to the motor shaft by the motor. The speed reducer includes a cycloidal gear that engages a complementary ring gear provided in the housing. The combined motor and mechanical drive is disclosed as being particularly useful in connection with oscillating spindle sanders; however, other applications are also contemplated.