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. 10, 1978
Filed:
Sep. 16, 1976
Applicant:
Inventor:
Fumio Sakurai, Yokohama, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 56 ; 310 62 ; 310227 ; 310232 ; 55439 ;
Abstract
In a dynamoelectric machine of the type wherein cooling air taken from outside of the machine is circulated through the housing of the machine by means of a fan and a casing containing slip rings is mounted on the outside of the housing, a portion of the cooling air pressurized by the fan is circulated through the casing for cooling the slip rings.
Sakurai, Fumio. (1978). Dynamoelectric machines (U.S. Patent No. 4119873). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4119873
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile