Finish plate assembly for a sprinkler head having interengaging

Details Finish plate assembly for a sprinkler head having interengaging Finish plate assembly for a sprinkler head having interengaging

1978-09-05

1980-08-05

Spar, Robert

Fire extinguishers

Mount, cabinet or guard

169 37, 220302, 248345, 285 46, A62C 3710

Patent

active

042157510

ABSTRACT:
A finish plate assembly for giving a finished appearance to a fire-protection sprinkler head exposed through an opening in a ceiling wherein the installed height and angular orientation of the ceiling with respect to the sprinkler head is variable, thereby determining a range of variation of relative distances normal to the ceiling between adjacent portions of the opening and the sprinkler head, the assembly including a finish plate having a planar contact surface for engagement with the ceiling outside the periphery of the opening and having two or more arms each with a radially-extending segment, and further including a receptor fixed to the sprinkler head, the receptor including openings for receiving the arm segments when the finish plate and arms are moved upward toward the fixed receptor, two or more circumferentially-extensive, resilient ramp elements for attachment around the sprinkler head, and a central opening for receiving the sprinkler head, and the resiliency of the ramp elements being selected to maintain contact between the contact surface and the ceiling despite, with passage of time, further variation of the relative distances within the range.

REFERENCES:
patent: 1507758 (1924-09-01), Scott
patent: 1762852 (1930-06-01), Zarobsky
patent: 2211399 (1940-08-01), Winslow
patent: 3130790 (1964-04-01), Hodgman
patent: 3998273 (1976-12-01), Juliano
patent: 4066129 (1978-01-01), Anderson
patent: 4117887 (1978-10-01), Anderson

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