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US 12,607,270 B2Granted
Swinging door check valve
AssigneeImproved Racing Products, LLC
InventorsRichard Michael Ihns, Casey A. Fitzgerald, Jarott E. Nelson
Life of this patent
Estimating the term…
Abstract
The disclosure relates generally to the field of valves, and, more particularly, to a unique swinging door check valve having an improved swinging flapper door and sealing gasket design.
Claims21
A check valve comprising:
- a valve body comprising at least an upstream end and a downstream end and a bore extending therethrough interconnecting the upstream and downstream ends to form a fluid pathway, the valve body further comprising an annular shoulder including an abutment surface adjacent to the downstream end of the valve body and a retaining slot formed along a portion of the abutment surface;
- an annular spring clip positioned and retained within the retaining slot, the spring clip comprising a pair of knuckles extending therefrom and each comprising pin hole;
- and
- a swinging flapper door assembly pivotally coupled to the valve body via a hinged connection with the spring clip, the swinging flapper door assembly being configured to rotate between at least a closed position and an open position,
- wherein, when the swinging flapper door is in the closed position, a sealing gasket of the swinging flapper door assembly engages and mates with the abutment surface to prevent flow upstream through the bore;
- and
- wherein, when the swinging flapper door is in the open position, the sealing gasket is disengaged from the abutment surface and fluid is able to flow downstream through the bore.
4 more elements
A check valve comprising:
- a valve body comprising at least an upstream end and a downstream end and a bore extending therethrough interconnecting the upstream and downstream ends to form a fluid pathway, the valve body further comprising an annular shoulder including an abutment surface adjacent to the downstream end of the valve body and a retaining slot formed along a portion of the abutment surface;
- an annular spring clip positioned and retained within the retaining slot, the spring clip comprising a pair of knuckles extending therefrom and each comprising pin hole;
- and
- a swinging flapper door assembly pivotally coupled to the valve body via a hinged connection with the spring clip, the swinging flapper door assembly being configured to rotate between at least a closed position and an open position relative to the bore, wherein the swinging flapper door assembly comprises:
- a hinge member comprising a pair of knuckles each comprising a pin hole for receiving a hinge pin to pivotally couple the assembly relative to the abutment surface of the valve body and a leaf portion;
- and
- a sealing gasket comprising a metal core portion and a gasket seal portion formed substantially over and around a perimeter of the metal core portion, wherein the sealing gasket is directly coupled to the leaf portion of the hinge member via a bucked integrated stem extending from the metal core portion of the sealing gasket and through an aperture of the hinge leaf;
- wherein, when in the closed position, the sealing gasket of the swinging flapper door assembly engages and mates with the abutment surface to prevent flow upstream through the bore, and, when in the open position, the sealing gasket is disengaged from the abutment surface and fluid is able to flow downstream through the bore.
5 more elements
Dependencies are inferred from the claim text.