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Title: US5020601: Concealed sprinkler assembly
[ Derwent Title ]

Country: US United States of America

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7 pages

Inventor: Retzloff, James G.; Lansing, MI
Sanders, Gerald W.; Middleville, MI

Assignee: Viking Corporation, Hastings, MI
other patents from VIKING CORPORATION (611130) (approx. 26)
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Published / Filed: 1991-06-04 / 1990-03-26

Application Number: US1990000499065

IPC Code: Advanced: A62C 35/68;
Core: A62C 35/58;
IPC-7: A62C 37/12;

U.S. Class: Current: 169/037; 239/288.5;
Original: 169/037; 239/288.5;

Field of Search: 169/037,38,39,40,41,42,90 239/288,288.3,288.5

Priority Number:
1990-03-26  US1990000499065

Abstract: A concealed sprinkler assembly includes a sprinkler head having a body defining a nozzle, an arm structure extending from the nozzle and a deflector mounted on the arm assembly opposite the nozzle. A mounting or gauge base is secured to the sprinkler head. The base positions the deflector and head with respect to a ceiling. A cover plate is snapped onto the sprinkler head assembly by a pair of metal clips. The clips are fabricated from a material which returns towards an original prebent configuration upon being exposed to a predetermined ambient temperature thereby releasing the cover plate from the assembly.

Attorney, Agent or Firm: Price, Heneveld, Cooper, DeWitt & Litton ;

Primary / Asst. Examiners: Basinger, Sherman D.; Avila, Stephen P.

INPADOC Legal Status: Show legal status actions

Family: None

First Claim:
Show all 16 claims
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows.     1. A concealed sprinkler assembly, comprising:
  • a sprinkler head assembly including a body defining an orifice an arm extending from said body and a deflector mounted on said arm opposite said orifice;
  • a mounting base secured to said sprinkler head body;
  • a cover plate; and
  • clip means on said cover plate for resiliently securing said cover plate to said deflector in a snap-on detent fashion, said clip means releasing said cover plate from said deflector upon exposure to a predetermined ambient temperature, said clip means including a pair of opposed metal clips secured to said cover plate, each of said metal clips including:
  • a clip base;
  • end tabs integral with said clip base, said end tabs extending upwardly from said clip base; and
  • an actuator arm resiliently joined to one of said end tabs, said end tabs being configured and dimensioned to capture said deflector with the deflector being positioned between said cover plate and said actuator arms, said actuator arms each moving towards an initial prebent configuration upon exposure to said predetermined ambient temperature.

Background / Summary: Show background / summary

Drawing Descriptions: Show drawing descriptions

Description: Show description

Forward References: Show 40 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (40)   |   Backward references (9)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 6pp US3285470  1968-11 Frei et al.   Thermally actuated devices
Get PDF - 6pp US3727695  1973-04 Danton   SPRINKLER HEAD PROTECTIVE COVER
Get PDF - 6pp US3889314  1975-06 McCabe   Heat actuated link
Get PDF - 6pp US4014388  1977-03 Anderson  Central Sprinkler Corporation Concealed sprinkler assembly
Get PDF - 7pp US4066129  1978-01 Anderson  Central Sprinkler Corporation Sprinkler head assembly
Get PDF - 5pp US4074388  1978-02 McCabe   Resettable, heat actuatable fire link
Get PDF - 4pp US4805261  1989-02 Barchechat  Safe-Air of Illinois, Inc. Resettable fire link
Get PDF - 6pp US4880063  1989-11 Leininger et al.  The Reliable Automatic Sprinkler Co., Inc. Adjustable concealed sprinkler
Get PDF - 9pp US4926946  1990-05 Polan  Central Sprinkler Corporation Pendent style sprinkler with cover
Foreign References: None

Other References:
  • AS Sprinkler Corp. of America Central Sprinkler Corp. "Adjustable Royal Flush Sprinkler Model 76A".
  • Central Sprinkler Copr. "Adjustable Royal Flush Sprinkler Model A" Eclipse Sprinkler.
  • Concealed Sprinkler Model F946-Grinnell Corporation Reliable Model G1.
  • Reliable Model G-4 Star-Model H The Unspoiler.
  • Concealed Sprinkler Phantom 1, Model PH-1-Star Sprinkler Corp.

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