Claims
- 1. A method of forming a permanent magnet rotor comprising:
- providing as one piece, an elongated body portion and a circular disc extending from said elongated body portion between opposed ends thereof and having an outer periphery;
- positioning a ring about said elongated body portion between said opposed ends such that said ring is substantially in line with said disc near said outer periphery only;
- positioning a permanent magnet having at least one recess therein about said ring and said circular disc; and
- applying an ultrasonic vibration to at least one of said ring and said circular disc to bond same together near said outer periphery, at least a portion of said ring and said circular disc being melted and flowing into at least said recess whereby said permanent magnet is secured in place.
- 2. A method according to claim 1 wherein hub portion, said circular disc, and said ring are fabricated from plastic.
Parent Case Info
The present application is a division of application Ser. No. 894,517 filed Apr. 7, 1978, now abandoned, which was a continuation of application Ser. No. 668,314 filed Mar. 18, 1976, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3881243 |
Bannon |
May 1975 |
|
Divisions (1)
|
Number |
Date |
Country |
Parent |
894517 |
Apr 1978 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
668314 |
Mar 1976 |
|