IP Library › Granted Patent US 4,923,173
Granted Patent Utility
US 4,923,173 · App. 07/429,015

Seating seal means for disc-type valve

Inventors: Paul G. Szymaszek, Earl Schumacher
Patented Case View Patent ↗
Granted: May 8, 1990 Filed: Oct 30, 1989
Inventors
Paul G. Szymaszek
Earl Schumacher
Assignee (at issue)
Vilter Manufacturing LLC

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Quick Facts
Patent No.
US 4,923,173
App. No.
07/429,015
Filed
1989-10-30
Granted
1990-05-08
Kind
A