Geometrical instruments – Gauge – Pipe layout or fitting
Reexamination Certificate
2007-07-10
2007-07-10
Bennett, G. Bradley (Department: 2859)
Geometrical instruments
Gauge
Pipe layout or fitting
C033SDIG021, C033S286000
Reexamination Certificate
active
11384794
ABSTRACT:
The present invention relates to an improved pipe sizing and alignment device that can quickly and precisely attach it's concave base to, and align itself with the horizontal axis of a circular, main pipe. Through the use of multiple lasers, one of which is mounted to an adjustable arm that pivots about the center of a graduated protractor mounted on the concave base, the device can be located along the main pipe and the collimated beam of light from the laser directed at a distant plumbing component. This shows the specific fitting location for a tie in between the main pipe and plumbing component that will allow the horizontal axis of the main pipe to remain true to it's original spatial position with respect to the building structure. An electronic distance measuring device, also mounted to the adjustable arm, precisely indicates distance.
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Bennett G. Bradley
Hubert Mark S.
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