US 11,852,152 B2
Pin vent assembly
Craig Louis Cavanaugh, Ossian, IN (US); Jacob John Berry, Uniondale, IN (US); David Michael Leckman, Fort Wayne, IN (US); and Miles Anthony Ebert, Auburn, IN (US)
Assigned to The Gorman-Rupp Company, Mansfield, OH (US)
Filed by The Gorman-Rupp Company, Mansfield, OH (US)
Filed on Oct. 2, 2020, as Appl. No. 17/062,046.
Claims priority of provisional application 62/949,713, filed on Dec. 18, 2019.
Claims priority of provisional application 62/911,430, filed on Oct. 7, 2019.
Prior Publication US 2021/0102544 A1, Apr. 8, 2021
Int. Cl. H02K 5/136 (2006.01); F04D 25/08 (2006.01); F04D 13/06 (2006.01); F04C 14/28 (2006.01); H02K 15/14 (2006.01)
CPC F04D 25/08 (2013.01) [F04C 14/28 (2013.01); F04D 13/06 (2013.01); H02K 5/136 (2013.01); H02K 15/14 (2013.01); H02K 2205/09 (2013.01)] 20 Claims
OG exemplary drawing
 
16. An explosion-proof fluid transfer pump assembly comprising:
an electronic device enclosure;
wherein the electronic device enclosure includes a wall separating an interior of the electronic device enclosure from an exterior of the explosion-proof fluid transfer pump assembly;
wherein the electronic device enclosure includes a bore extending through the wall of the electronic device enclosure from the interior of the electronic device enclosure to the exterior of the explosion-proof fluid transfer pump assembly;
wherein the bore is formed by at least one peripheral surface extending from the interior of the electronic device enclosure to the exterior of the explosion-proof fluid transfer pump assembly;
a vent pin that extends through the bore;
wherein the vent pin fills space within the bore and engages the at least one peripheral surface except that at least one portion of a pin surface of the vent pin is spaced apart from at least one portion of the at least one peripheral surface of the bore to form at least one flame path between the at least one portion of the pin surface of the vent pin and the at least one portion of the at least one peripheral surface of the bore from the interior of the electronic device enclosure to the exterior of the explosion-proof fluid transfer pump assembly to equalize pressure between the interior of the electronic device enclosure to the exterior of the explosion-proof fluid transfer pump assembly.