One-way valve
First Claim
1. A one-way valve comprising a valve body including a passage therethrough, a valve seat within the passage, parallel mounting surfaces about the passage and two circular attachment flanges radially extending from the mounting surfaces, the circular attachment flanges each defining a central axis, the central axes being parallel to and displaced laterally from each other;
- a valve element including the group consisting of an untethered and an axially slidably mounted body positioned to rest on the seat.
3 Assignments
0 Petitions
Accused Products
Abstract
A double diaphragm pump including an air manifold, two air chambers to either side of the air manifold, two pump chambers to either side of the air chambers and diaphragms extending between the air chambers and pump chambers are stacked together in horizontal assembly. Intake and discharge manifolds span this distance to intake and exhaust ports associated with the pump chambers. One-way valves having valve bodies with passages therethrough are arranged between the manifolds and the pump chambers. The valve bodies have inlet mounting surfaces and outlet mounting surfaces with circular attachment flanges radially extending from these mounting surfaces. The circular attachment flanges each define a central axis which on each valve body are parallel and laterally displaced from one another. Concavities extend inwardly from the valve bodies from the inlet and outlet mounting surfaces. The angle between the central axis in the direction of the adjacent mounting surface and the surface of either concavity is acute and does not exceed approximately 60°.
16 Citations
38 Claims
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1. A one-way valve comprising
a valve body including a passage therethrough, a valve seat within the passage, parallel mounting surfaces about the passage and two circular attachment flanges radially extending from the mounting surfaces, the circular attachment flanges each defining a central axis, the central axes being parallel to and displaced laterally from each other; a valve element including the group consisting of an untethered and an axially slidably mounted body positioned to rest on the seat. - View Dependent Claims (2, 3)
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4. A one-way valve comprising
a valve body including a passage therethrough, a valve seat within the passage, parallel mounting surfaces about the passage, two circular attachment flanges radially extending from the mounting surfaces, the circular attachment flanges each defining a central axis, the central axes being parallel to and displaced laterally from each other, the diameters of the circular attachment flanges being equal; a valve element positioned to rest on the seat. - View Dependent Claims (5, 6, 7)
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8. A one-way valve comprising
a valve body including an inlet mounting surface, an outlet mounting surface, a passage extending between the mounting surfaces and two circular attachment flanges radially extending from the mounting surfaces, the circular attachment flanges each defining a central axis, the central axes being parallel to and displaced laterally from each other, the passage defining two concavities from the mounting surfaces with the surface of each concavity always forming an acute angle with the central axes in the direction of the mounting surface adjacent the concavity; a valve element positioned to rest in the concavity which is adjacent the outlet mounting surface. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A pump comprising
two pump chambers; -
a manifold in communication with each of the pump chambers;
two valve bodies positioned between the manifold and the pump chambers, respectively, and each including an inlet mounting surface, an outlet mounting surface for mounting between the respective pump chamber and manifold, a passage extending between the mounting surfaces and two circular attachment flanges radially extending from the mounting surfaces, the circular attachment flanges each defining a central axis, the central axes being parallel to and displaced laterally from each other, the passage defining two concavities from the mounting surfaces with the surface of each concavity always forming an acute angle with the central axes in the direction of the mounting surface adjacent the concavity;
valve elements positioned to rest in the concavities which is adjacent the outlet mounting surface. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A double diaphragm pump comprising
an air manifold; -
two air chambers, the air manifold being between the two air chambers;
two pump chambers, the two air chambers being between the two pump chambers, the pump chambers each having an intake port and an exhaust port, each port having a circular attachment flange radially extending from the port;
diaphragms between the pump chambers and the air chambers, respectively;
an inlet manifold including two inlet manifold ports in communication with the pump chamber intake ports, each inlet manifold port having a circular attachment flange radially extending from the inlet manifold port and an inlet to the inlet manifold in communication with the inlet manifold ports;
a discharge manifold including two discharge manifold ports in communication with the pump chamber exhaust ports , each discharge manifold port having a circular attachment flange radially extending from the discharge manifold port and a discharge from the discharge manifold in communication with the discharge manifold ports;
four valve bodies positioned between the manifold and the pump chambers, respectively, and each including an inlet mounting surface, an outlet mounting surface for mounting between the respective pump chamber and manifold, a passage extending between the mounting surfaces and two circular attachment flanges radially extending from the mounting surfaces, the circular attachment flanges each defining a central axis, the central axes being parallel to and displaced laterally from each other, the passage defining two concavities from the mounting surfaces with the surface of each concavity always forming an acute angle with the central axes in the direction of the mounting surface adjacent the concavity;
valve elements positioned to rest in the concavities which is adjacent the outlet mounting surface. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification