Invention Grant
- Patent Title: Extended coverage dry pendent storage sprinkler for a large storage freezer
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Application No.: US15775683Application Date: 2016-11-14
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Publication No.: US11241598B2Publication Date: 2022-02-08
- Inventor: George S. Polan
- Applicant: The Reliable Automatic Sprinkler Co., Inc.
- Applicant Address: US SC Liberty
- Assignee: The Reliable Automatic Sprinkler Co., Inc.
- Current Assignee: The Reliable Automatic Sprinkler Co., Inc.
- Current Assignee Address: US SC Liberty
- Agency: Venable LLP
- International Application: PCT/US2016/061800 WO 20161114
- International Announcement: WO2017/083810 WO 20170518
- Main IPC: A62C35/62
- IPC: A62C35/62 ; A62C3/00 ; A62C37/12

Abstract:
A dry sprinkler has a casing tube having an inlet orifice and an outlet orifice. When the sprinkler is in a non-actuated state, an inlet seal assembly operatively seals the inlet orifice and an outlet seat assembly operatively seals the outlet orifice. A translating member extends through the casing tube between an inlet and an outlet. The translating member axially translates from a first position, in which the translating member retains the inlet seal assembly in a sealed state, to a second position, in which the translating member releases the inlet seal assembly, toward the outlet when the outlet seat assembly is released. The sprinkler has a nominal K-factor greater than 17 gpm/(psi)1/2. In addition, a difference between a cross-sectional area of the casing tube and a cross-sectional area bounded by an outer perimeter of the translating member is more than 30% of the cross-sectional area of the casing tube.
Public/Granted literature
- US20180353786A1 DRY SPRINKLER Public/Granted day:2018-12-13
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