US 12,247,679 B2
Self-sealing hose
Raymond Mark Gamache, Salinas, CA (US); and Christopher Marc LeTorre Phifer, Grosse Pointe, MI (US)
Assigned to The United States of America as Represented by the Secretary of the Navy, Arlington, VA (US)
Filed by The United States of America, as represented by the Secretary of the Navy, Arlington, VA (US)
Filed on May 4, 2022, as Appl. No. 17/736,914.
Claims priority of provisional application 63/184,191, filed on May 4, 2021.
Prior Publication US 2022/0356966 A1, Nov. 10, 2022
Int. Cl. F16L 11/12 (2006.01); F16L 11/20 (2006.01)
CPC F16L 11/12 (2013.01) [F16L 11/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A self-sealing hose comprising:
an inner rubber layer comprising a first rubber material; and
an outer rubber layer comprising a second rubber material;
wherein the second rubber material has an ultimate strain of at least 100% and an elastic limit of at least about 7 MPa; and
wherein the first rubber material has a modulus measured at 250% elongation of less than about 10 kPa.