Adjustable plumbing fitting

Details Adjustable plumbing fitting Adjustable plumbing fitting

1974-12-12

1976-04-20

Guest, Alfred R.

Pipe joints or couplings

Screw

Interrupted thread

285298, F16L 1500

Patent

active

039514412

ABSTRACT:
A cleanout plumbing fitting with two telescoped cylindrical cast parts, the internal part bearing a split ring lodged in and projecting from a cast-in one-turn helical groove to form a male thread; and the external part bearing three equiangularly spaced elongated elements each having a similar series of notches spaced corresponding to the groove pitch with the series successively offset by one-third pitch, forming an interrupted female thread engaged by the male thread for adjustability of the telescoped parts, the latter advantageous even with a cast male thread.

REFERENCES:
patent: 296181 (1884-04-01), Ketcham
patent: 505130 (1893-09-01), Ryan
patent: 1684572 (1928-09-01), Boosey
patent: 2032017 (1936-02-01), Hocher et al.
patent: 2594027 (1952-04-01), Jakeway
patent: 3301579 (1967-01-01), Gasche et al.

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