Motor assembly and method of biasing the same
US9709155B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2015 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Jul 14, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1987
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of biasing a worm shaft of a motor assembly including the steps of: providing a motor assembly having a housing defining an inner chamber, an access aperture spaced therefrom, a shaft aperture in communication with both the chamber and access aperture, and a shaft rotatably supported by and at least partially disposed in the shaft aperture; providing an ultrasonic device having a horn for producing vibrations; providing a slug having a body defining a first shape for being disposed in the access aperture, transformable to a second shape whereby the slug melts in response to predetermined vibrations; placing the slug in the access aperture; actuating the ultrasonic device so as to transform the slug to the second shape such that the slug melts and at least partially flows into the shaft aperture to abut the terminal portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.