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:
May. 26, 1987
Filed:
Jul. 21, 1986
Mabuchi Motor Co.,Ltd., , JP;
Abstract
A miniature motor having a rotor comprising a commutator having locating projections formed on the commutator reference surface coming in contact with a rotor core, and a rotor core having thereon locating key holes for engaging with the locating projections; the commutator being fitted to the rotor core by engaging the locating projections with the locating key holes until the commutator reference surface comes in contact with the rotor core; in which each of the locating projections has a temporary insertion portion at the tip thereof, whose cross-section is smaller than the cross-section of the locating key hole, and a full insertion portion for engaging with the locating key hole; the full insertion portion has such a length that the commutator tongue of the commutator is located at a position higher than the height of the rotor windings in a state where the temporary insertion portion is inserted into the locating key hole.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile