US 12,345,495 B2
Method of making a reliable gun
Andrew W. Suman, Waterford, MI (US)
Filed by Andrew W. Suman, Waterford, MI (US)
Filed on Jan. 26, 2023, as Appl. No. 18/159,836.
Application 18/159,836 is a continuation of application No. PCT/US2021/028704, filed on Apr. 22, 2021.
Claims priority of provisional application 63/058,445, filed on Jul. 29, 2020.
Prior Publication US 2023/0160653 A1, May 25, 2023
Int. Cl. F41A 3/66 (2006.01); C10M 171/00 (2006.01); F41A 29/04 (2006.01); C10N 50/00 (2006.01); F41A 3/12 (2006.01); F41A 5/18 (2006.01); F41A 19/13 (2006.01)
CPC F41A 29/04 (2013.01) [C10M 171/00 (2013.01); C10N 2050/023 (2020.05); F41A 3/12 (2013.01); F41A 3/66 (2013.01); F41A 5/18 (2013.01); F41A 19/13 (2013.01)] 14 Claims
OG exemplary drawing
 
14. A gun, comprising:
a first metal part and a second metal part that slide past one another; and
a coating over a surface of the first metal part;
wherein the coating comprises a porous upper layer;
the porous upper layer comprises a thermoset polymer and a filler; and
the porous upper layer has the property of taking up oil, retaining the oil, and expressing some of the oil under stresses induced by operating the gun; and
wherein the coating further comprises a lower layer comprising a second thermoset polymer.