Flange bolt hole alignment pin

Details Flange bolt hole alignment pin Flange bolt hole alignment pin

1995-08-08

1997-01-07

Fulton, Christopher W.

Geometrical instruments

Gauge

Collocating

33520, 33533, 33644, 29271, 29464, G01B 525, B23P 1904

Patent

active

055904742

ABSTRACT:
A bolt hole alignment pin for assisting in aligning mating flanges in piping systems comprises a head, a first portion for slip fit with the bolt holes in the flanges, a second portion for centering a gasket between the mating flanges, and a third portion offset from the second portion for providing a cam action when the head is turned to bring the flanges into exact alignment.

REFERENCES:
patent: 2314582 (1943-03-01), Gerich
patent: 2370017 (1945-02-01), Delvaux, Sr.
patent: 2484801 (1949-10-01), Anderson
patent: 2963090 (1960-12-01), Cole et al.
patent: 3389472 (1968-06-01), Poland
patent: 3685126 (1972-08-01), Kane
patent: 3725993 (1973-04-01), Siler
patent: 3762068 (1973-10-01), Clay
patent: 3822481 (1974-07-01), Doan
patent: 4383368 (1983-05-01), Morawski et al.
patent: 4662055 (1987-05-01), VanMeter
patent: 4742618 (1988-05-01), Watkins et al.
patent: 4773164 (1988-09-01), Taylor et al.
patent: 4982489 (1991-01-01), Haugen

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