IP Library › Granted Patent US 4,744,569
Granted Patent Utility
US 4,744,569 · App. 07/107,334

Bellows mechanical seal with inactive diaphragms

Inventors: Robert S. Wentworth, by Benning Wentworth, executor
Patented Case View Patent ↗
Granted: May 17, 1988 Filed: Oct 13, 1987
Inventors
Robert S. Wentworth
by Benning Wentworth, executor
Assignee (at issue)
BW/IP International, Inc.

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Quick Facts
Patent No.
US 4,744,569
App. No.
07/107,334
Filed
1987-10-13
Granted
1988-05-17
Kind
A