John David Sore

US Patent:

60445726, Apr 4, 2000

Filed:

Dec 4, 1997

Appl. No.:

8/985417

Inventors:

John D. Sore - Scarsdale NY

International Classification:

G01B 310

US Classification:

335554

Abstract:

An apparatus is provided for determining a type of insulation for a first pipe and a second pipe having a first predetermined cross-sectional wall thickness a second predetermined cross-sectional wall thickness, respectively. The apparatus includes a ruler sheet having a bar situated thereon. Also provided is a pair of scales each including a plurality apertures formed therein through the ruler sheet and a unique inner diameter indicia situated adjacent each aperture. Such pair of scales include a copper tube scale and a iron pipe scale situated on the ruler sheet. The apertures of each scale are offset a predetermined amount to compensate for the difference between the first and second predetermined cross-sectional wall thickness.