Pipe fitting aligning device

Geometrical instruments – Straightedge type – Shaft aligning

Reexamination Certificate

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Details

C033S529000, C033S472000

Reexamination Certificate

active

10981259

ABSTRACT:
A pipe fitting aligning device having at least one square block assembly slidably positioned on a reference tool. The square block assembly includes a slot with a vertical scale extending therefrom. The device may include at least one compass assembly slidably positioned on the reference tool and spaced apart from the square block assembly.

REFERENCES:
patent: 3245201 (1966-04-01), Richardson
patent: 3670418 (1972-06-01), Hamilton, Jr.
patent: 4375724 (1983-03-01), Brock
patent: 4380872 (1983-04-01), Moran
patent: 4388765 (1983-06-01), Dearman
patent: 4497119 (1985-02-01), Dearman
patent: 4914825 (1990-04-01), Howard
patent: 6505412 (2003-01-01), Hauzie, Jr.
patent: 6622395 (2003-09-01), Hickey
patent: 2002/0178597 (2002-12-01), Todd

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