Adjustable dry pendant sprinkler head assembly

Details Adjustable dry pendant sprinkler head assembly Adjustable dry pendant sprinkler head assembly

1976-08-19

1977-02-15

Ward, Jr., Robert S.

Fluid sprinkling, spraying, and diffusing

With fixed support for or ground installed supply means

Building features

239281, 169 37, 285302, 285323, B05B 1508, A62C 3710, F16L 1502

Patent

active

040078787

ABSTRACT:
An adjustable drop nipple is disclosed for installing fire protection sprinkler systems which comprise sprinkler head assemblies of the dry, pendant type. The downwardly extending length of a drop nipple having a sprinkler head thereon is adjusted by sliding the nipple axially in a collet having an externally tapered section that engages an internally tapered section of a stationary collet holder. When a selected drop length has been established, the collet is then compressed axially against the collet holder with tightening means whereby the nipple is firmly gripped by the collet so that axial sliding thereof is prevented, thereby maintaining the nipple at the selected drop length.

REFERENCES:
patent: 1206658 (1916-11-01), Berryman
patent: 3529671 (1970-09-01), Adams
patent: 3675952 (1972-07-01), Mears
patent: 3847392 (1974-11-01), Horwinski
patent: 3958819 (1976-05-01), Tifft

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