US 12,486,699 B2
Pass-through door compartment interlock mechanism
Kevin Weist, Plymouth, MN (US); and Tyler Weeden, Coon Rapids, MN (US)
Assigned to Clean Air Products Co., Minneapolis, MN (US)
Filed by Clean Air Products Co., Minneapolis, MN (US)
Filed on Jun. 28, 2023, as Appl. No. 18/215,779.
Claims priority of provisional application 63/389,670, filed on Jul. 15, 2022.
Prior Publication US 2024/0018811 A1, Jan. 18, 2024
Int. Cl. E05C 7/02 (2006.01); A47G 29/20 (2006.01); B01L 1/00 (2006.01); E05C 17/08 (2006.01); E05G 7/00 (2006.01)
CPC E05C 7/02 (2013.01) [A47G 29/20 (2013.01); B01L 1/00 (2013.01); E05C 17/08 (2013.01); E05G 7/005 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a first assembly configured for coupling to a pass-through compartment, the pass-through compartment comprising a first door and a second door;
the first assembly comprising:
a first spring pin;
a first spring in communication with the first spring pin;
a first rod coupled to the first spring pin;
a first pivot arm coupled to the first rod; and
a first keyhole profile coupled to the first pivot arm; and
a second assembly configured for coupling to the pass-through compartment;
the second assembly comprising:
a second spring pin;
a second spring in communication with the second spring pin;
a second rod coupled to the second spring pin;
a second pivot arm coupled to the second rod; and
a second keyhole profile coupled to the second pivot arm;
wherein the first spring pin is maintained in a first position when the first door is closed, thereby maintaining the first spring in a compressed state;
wherein the first spring is uncompressed when the first door is open, thereby causing the first spring pin to move to a second position protruding from a frame of the pass-through compartment and causing the first rod to be pulled away from the second door, thereby causing the first pivot arm to pivot, thereby moving the first keyhole profile to engage a first strike pin mounted on the second door, thereby locking the second door;
wherein the second spring pin is maintained in a third position when the second door is closed, thereby maintaining the second spring in a compressed state; and
wherein the second spring is uncompressed when the second door is open, thereby causing the second spring pin to move to a fourth position protruding from the frame of the pass-through compartment and causing the second rod to be pulled away from the first door, thereby causing the second pivot arm to pivot, thereby moving the second keyhole profile to engage a second strike pin mounted on the first door, thereby locking the first door.