US 12,350,701 B2
Injection gun
Daniel Charles Beck, Akron, OH (US)
Assigned to SUMMIT LEED LLC, Akron, OH (US)
Filed by SUMMIT LEED LLC, Akron, OH (US)
Filed on Jul. 25, 2022, as Appl. No. 17/872,884.
Prior Publication US 2024/0024914 A1, Jan. 25, 2024
Int. Cl. B05C 17/005 (2006.01); E04G 23/02 (2006.01)
CPC B05C 17/005 (2013.01) [B05C 17/0052 (2013.01); E04G 23/0211 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An injection gun comprising:
a filler material injection assembly including:
a pressure regulator handle to control a flow of filler material;
a four-way valve connected to the pressure regulator handle, a first port of the four-way valve being connected to the pressure regulator handle to receive the filler material under pressure;
a pressure gauge connected to a second port of the four-way valve to indicate a level of pressure of the filler material under pressure;
a pressure release valve assembly connected to a third port of the four-way valve, the pressure release valve assembly to reduce the level of pressure of the filler material under pressure; and
a first output coupling connected to a fourth port of the four-way valve to eject the filler material under pressure,
wherein the pressure release valve assembly includes:
a second flow control valve connected to the third port of the four-way valve; and
a collection tube connected to the second flow control valve, wherein the collection tube has a predefined volume to catch and accumulate the filler material therein without releasing the filler material when the second flow control valve is opened to reduce the level of pressure of the filler material.