US 9,810,364 B2
Gripping apparatus and devices for plugging of pipes, orifices or connecting
Tracy Sue, Baytown, TX (US); Casey Sue, Baytown, TX (US); and Richard Sallee, Winnie, TX (US)
Assigned to USA Industries, Inc., South Houston, TX (US)
Filed by USA Industries, Inc., South Houston, TX (US)
Filed on Dec. 16, 2016, as Appl. No. 15/381,394.
Application 15/381,394 is a continuation of application No. 15/356,206, filed on Nov. 18, 2016.
Claims priority of provisional application 62/366,591, filed on Jul. 25, 2016.
Claims priority of provisional application 62/313,376, filed on Mar. 25, 2016.
Claims priority of provisional application 62/258,311, filed on Nov. 20, 2015.
Prior Publication US 2017/0152985 A1, Jun. 1, 2017
Int. Cl. F16L 55/11 (2006.01)
CPC F16L 55/1133 (2013.01) 22 Claims
OG exemplary drawing
 
1. A gripping apparatus, for use in connecting to a pipe wherein the pipe defines an inside radius, comprising:
a plurality of discrete gripping devices mounted in a body;
wherein the body comprises a wedge cone;
a first plate proximate a lower end of the wedge cone;
a second plate proximate the higher end of the wedge cone;
an outer surface on each the plurality of discrete gripping devices;
wherein the outer surface has a transition surface defined by a means for reducing any sharp transition point;
a plurality of discrete self-actuation-self-retraction mechanisms connected to the first plate and one each individually connected to each of the plurality of discrete gripping devices; and
a collective discrete gripping device extension-retractable mechanism connected to the second plate.