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:
Oct. 06, 1992
Filed:
May. 09, 1991
Carl A Carlson, Oakland, CA (US);
Team Scarab, Inc., Santa Barbara, CA (US);
Abstract
A water jet propulsion unit having a housing, a drive shaft, an impeller for mounting on the drive shaft, and a thrust bearing for supporting the drive shaft in the housing. The propulsion unit further includes a shaft seal unit for the shaft, with the housing having a forward end and a rear end, a bore with a longitudinal axis for slidingly receiving the shaft seal unit form the rear of the housing, with the shaft seal unit and the bearing carried on the shaft, a shoulder for preventing forward movement of the bearing in the bore along the axis beyond a predetermined position, and a lateral opening for access through the housing to the shaft seal unit, and a retainer moveable through the lateral opening for engagement with the shaft seal unit and the housing for limiting rearward movement of the shaft seal unit in the bore.