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:
Mar. 01, 1977
Filed:
Sep. 04, 1975
Elmer E Croisant, Oshkosh, WI (US);
Brunswick Corporation, Skokie, IL (US);
Abstract
An electric trolling motor includes a lower unit with a cylindrical motor housing closed at the aft end by a planetary gear-reduction subassembly. A motor shaft supporting hub member telescopes into the housing and has clamped thereagainst an annular gear with clamping bolts passing therethrough and threaded into the hub member. Planetary gears carried by a cage engage the annular gear. A propeller shaft is fixed to the cage and journaled in a second hub portion of the housing. A sun gear meshes with the planetary gears and has an opening aligned with an opening in a hub portion of the first hub member to receive the motor shaft. The shaft openings in the first and second hub members have shaft bearings in spherical seats and rotating seals. The spherical seats provided proper alignment of the shafts. The planetary gear subassembly drops onto the motor shaft with both hub members abutting the motor housing and secured thereto by bolts. The motor shaft and sun gear have complementing interlocking surfaces to establish rotatable interconnection. The opposing surfaces of the sun gear and the cage have thrust bearing surfaces with the motor shaft holding the sun gear in cage abutting relation.