US 11,654,445 B2
Automatically adjustable tool for holding a spray painting instrument for painting an infernal surface of a pipe
Tiberio Hernandez, Freer, TX (US)
Filed by Tiberio Hernandez, Freer, TX (US)
Filed on Jun. 17, 2021, as Appl. No. 17/350,372.
Application 17/350,372 is a division of application No. 16/597,031, filed on Oct. 9, 2019, granted, now 11,065,630.
Claims priority of provisional application 62/743,192, filed on Oct. 9, 2018.
Prior Publication US 2021/0308700 A1, Oct. 7, 2021
Int. Cl. B05B 13/06 (2006.01); B05B 7/00 (2006.01); B05B 9/00 (2006.01); B25J 11/00 (2006.01); B05C 7/08 (2006.01); B05D 7/22 (2006.01); F16L 55/44 (2006.01); F16L 101/16 (2006.01); B25J 5/00 (2006.01)
CPC B05B 7/0093 (2013.01) [B05B 9/007 (2013.01); B05B 13/06 (2013.01); B05C 7/08 (2013.01); B25J 11/0075 (2013.01); B05B 13/0627 (2013.01); B05D 7/225 (2013.01); B25J 5/007 (2013.01); F16L 55/44 (2013.01); F16L 2101/16 (2013.01); Y10S 118/10 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A tool for holding a spray painting instrument for painting an internal surface of a pipe, the tool comprising:
a central hub, wherein the central hub comprises a hollow tube for carrying the spray painting instrument and at least two projections that extend outwardly from an outer surface of the hollow tube; and
a first retracting arm assembly and a second retracting arm assembly, provided on each of the at least two projections, wherein the first retracting arm assembly and includes:
a first retracting arm pivotally attached to a first projection, of the at least two projections, with a first pivot pin and a first spring, wherein said first spring extends between a second end of the first retracting arm to a first fixed pin on the first projection, wherein the first pivot pin is placed in between a first end of the first retracting arm and the second end of the first retracting arm, and
a second retracting arm pivotally attached to the first projection of the at least two projections with a second pivot pin and a second spring, wherein said second spring extends between a second end of the second retracting arm to a second fixed pin on the first projection, wherein the second pivot pin is placed in between a first end of the second retracting arm and the second end of the second retracting arm, and
wherein the second retracting arm assembly includes:
a third retracting arm pivotally attached to a second projection, of the at least two projections, with a third pivot pin and a third spring, wherein said third spring extends between a second end of the third retracting arm to a third fixed pin on the second projection, wherein the third pivot pin is placed in between a first end of the third retracting arm and the second end of the third retracting arm, and
a fourth retracting arm pivotally attached to the second projection of the at least two projections with a fourth pivot pin and a fourth spring, wherein said fourth spring extends between a second end of the fourth retracting arm to a fourth fixed pin on the second projection, wherein the fourth pivot pin is placed in between a first end of the fourth retracting arm and the second end of the fourth retracting arm, and
in operation, when the tool is inserted inside the pipe, each of the first retracting arm, the second retracting arm, the third retracting arm, and the fourth retracting arm touches the internal surface of the pipe due to an outward force exerted thereon, and
wherein the tool is movable inside the pipe and the tool engages curves of the pipe wherein said curves have angles of up to 90 degrees.