Check gauge for swaged fitting and tube connections

Claim 2

A gauge device for use with a swaged fitting having a body with an open ended sleeve to receive a tube to be connected into the sleeve by swaging and in which the tube has a depth of penetration marking thereon; said gauge device including a body having a reference surface thereon, a first surface at one side of said reference surface sized to receive said body sleeve when properly swaged in diameter and length, and said body having a second surface located on the opposite side of said reference surface from said first surface, said second surface cooperating with the tube marking to indicate proper tube penetration into the fitting sleeve, said reference surface abutting the open end of the sleeve to position said first and second surfaces in gauging relation on the sleeve and tube.

Claim 3

The gauge of claim 1 wherein said first surface is semi-cylindrical to form a seat received over the fitting sleeve when properly swaged, and said second surface extends axially away from the cylindrical seat and outwardly toward the tube marking to visually show the extent of tube penetration into the sleeve.

Claim 4

The gauge of claim 1 wherein said first and second surfaces are off-set with said second surface set inwardly of said first surface to expose said reference surface to said first surface.

Claim 5

In a tube fitting gauge for use with swaged connections between a pre-marked tube and a fitting having an open ended tube receiving sleeve adapted to be swaged onto the Tube with consequent reduction in diameter; said gauge comprising a body having a main portion formed with a U-shaped recess adapted to receive the fitting sleeve when swaged to an acceptable length and diameter, said gauge body having an extension portion directed to lie alongside the tube beyond the sleeve after swaging, the position of said marking on the tube relative to the end of said extension portion visually indicating the depth of insertion of the tube into the fitting sleeve, and said body having a reference surface on said extension portion adjacent said main portion to abut the open end of the tube receiving sleeve and locate the gauge in gauging position.

Claim 6

In a tube fitting gauge for use with swaged connections between a pre-marked tube and a fitting having an open ended tube receiving sleeve adapted to be swaged onto the Tube with consequent reduction in diameter; said gauge comprising a body having a main portion formed with a U-shaped recess adapted to receive the fitting sleeve when swaged to an acceptable length and diameter, said gauge body having an extension portion directed to lie alongside the tube beyond the sleeve after swaging, the position of said marking on the tube relative to the end of said extension portion visually indicating the depth of insertion of the tube into the fitting sleeve, and said body having a reference surface on said extension portion adjacent said main portion to abut the open end of the tube receiving sleeve and locate the gauge in gauging position.

Claim 7

The gauge of claim 4 in which said extension portion has a shoulder adjacent said U-shaped recess, and said shoulder forming said reference surface for locating said gauge body on said fitting by engaging the end of the tube receiving sleeve.

Claim 8

A gauge device for visually checking the sufficiency of a swaged connection formed by fitting an open end sleeve over a tube having an index mark thereon for indicating the depth of tube insertion into the sleeve and then swaging the sleeve over the tube, said gauge device comprising a body having a first gauge portion formed with parallel gauging surfaces spaced apart a distance equal to a desired diameter of the sleeve after swaging, said body having a second gauge portion extending from said first gauge portion a length equal to a desired position of the index mark on the tube relative to the open end of the sleeve, and said body having a reference surface between said first and second gauge portions, said reference surface being located to engage the sleeve end for positioning said second gauge portion along the tube toward the location of the index mark, said reference surface engagement with the sleeve end being indicative of said parallel surfaces of said first portion receiving therebetween the sleeve after swaging.

Claim 9

A gauge device for visually checking the sufficiency of a swaged connection formed by fitting an open end sleeve over a tube having an index mark thereon for indicating the depth of tube insertion into the sleeve and then swaging the sleeve over the tube, said gauge device comprising a body having a first gauge portion formed with parallel gauging surfaces spaced apart a distance equal to a desired diameter of the sleeve after swaging, said body having a second gauge portion extending from said first gauge portion a length equal to a desired position of the index mark on the tube relative to the open end of the sleeve, and said body having a reference surface between said first and second gauge portions, said reference surface being located to engage the sleeve end for positioning said second gauge portion along the tube toward the location of the index mark, said reference surface engagement with the sleeve end being indicative of said parallel surfaces of said first portion receiving therebetween the sleeve after swaging.