US 12,410,879 B2
Latch assembly for use with an inversion drum
Craig Lawrence Noggle, East Troy, WI (US); Robert F. Crane, Nekoosa, WI (US); Mark D. Randa, Oconomowoc, WI (US); and Steven W. Wentworth, Scottsdale, AZ (US)
Assigned to The Charles Machine Works, Inc., Perry, OK (US)
Filed by The Charles Machine Works, Inc., Perry, OK (US)
Filed on Jan. 8, 2024, as Appl. No. 18/406,355.
Application 18/406,355 is a continuation of application No. 16/738,354, filed on Jan. 9, 2020, abandoned.
Application 16/738,354 is a continuation of application No. 16/042,128, filed on Jul. 23, 2018, granted, now 10,550,989, issued on Feb. 4, 2020.
Claims priority of provisional application 62/549,299, filed on Aug. 23, 2017.
Prior Publication US 2024/0142036 A1, May 2, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F16L 55/18 (2006.01); E05C 3/04 (2006.01); E05C 9/08 (2006.01); E05C 19/00 (2006.01)
CPC F16L 55/18 (2013.01) [E05C 3/04 (2013.01); E05C 9/08 (2013.01); E05C 19/002 (2013.01); Y10T 292/0866 (2015.04); Y10T 292/0892 (2015.04); Y10T 292/11 (2015.04)] 23 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a pressurized inversion drum comprising:
a body having an opening formed therein, the opening surrounded by an outer body edge;
a plurality of exposed notches formed in the outer body edge;
a cover having opposed inner and outer surfaces and an outer cover edge, the cover positioned over the opening and movable between an open position and a closed position;
a rotatable latch pin;
a rotatable handle coupled to the body; in which rotation of the handle moves the rotatable latch pin between an unlocked position and a locked position;
a plurality of knuckles projecting from the outer cover edge;
in which the outer cover edge is sealed against the outer body edge when the cover is in the closed position;
in which the plurality of knuckles mate with the plurality of exposed notches in a one-to-one relationship when the cover is in the locked position thereby preventing the cover from being removed from the opening and in which the plurality of knuckles and plurality of exposed notches form a plurality of passages;
in which the rotatable latch pin is installed within the plurality of passages; and
in which the cover is configured to be removed from the opening when the latch pin is in the unlocked position;
a groove formed within the inner surface of the cover;
a seal installed within the groove; in which the seal engages the outer body edge when the cover is in the closed position; and
a window formed within the cover such that an interior of the body is viewable through the window.