IP Library › Granted Patent US 4,136,887
Granted Patent Utility
US 4,136,887 · App. 05/839,479

Bellows type mechanical seal

Inventor: Robert S. Wentworth
Patented Case View Patent ↗
Granted: Jan 30, 1979 Filed: Oct 4, 1977
Inventor
Robert S. Wentworth
Assignee (at issue)
BorgWarner Inc.

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Quick Facts
Patent No.
US 4,136,887
App. No.
05/839,479
Filed
1977-10-04
Granted
1979-01-30
Kind
A