IP Library › Granted Patent US 4,648,459
Granted Patent Utility
US 4,648,459 · App. 06/793,030

Low preload self-sealing quick release valve for sprinkler head

Inventor: George S. Pieczykolan
Patented Case View Patent ↗
Granted: Mar 10, 1987 Filed: Oct 30, 1985
Inventor
George S. Pieczykolan
Assignee (at issue)
CENTRAL SPRINKLER CORPORATION

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Quick Facts
Patent No.
US 4,648,459
App. No.
06/793,030
Filed
1985-10-30
Granted
1987-03-10
Kind
A