Oblong diaphragm valves
AssigneeEntegris, Inc.
InventorIraj Gashgaee
Life of this patent
Estimating the term…
Abstract
An oblong diaphragm valve has curved surfaces carved into faces of a body and a plate. The curved surfaces have an oblong shape and define an oval or egg-shaped valve chamber when the body and the plate are joined and secured to each other, with a diaphragm sandwiched there-between. An inlet and an outlet are defined in the curved surface of the body at opposite ends defined by a length of the valve chamber. A flow passage is defined in the curved surface of the plate and has an opening centrally located relative to the valve chamber for actuation of the diaphragm to close or open the oblong diaphragm valve with minimal or no stress, ensuring durability and longevity of the oblong diaphragm valve with increased precision, while reducing fluid waste and pressure spikes in pumping operations.
Claims20
An oblong diaphragm valve, comprising:
- a valve body having a first half and a second half, the first half of the valve body having a first depression defined in a face of a dispense block, the second half of the valve body having a second depression defined in a face of a valve plate, the first depression and the second depression having same or substantially same oblong shape, the oblong shape having a length and a width, the length greater than the width;
- a valve chamber having a volume defined by the first depression and the second depression in the first half and the second half of the valve body, the valve chamber having a first end and a second end defined by the length of the oblong shape;
- an inlet defined in the first half of the valve body and proximal to the first end of the valve chamber for directing a fluid into the valve chamber;
- an outlet defined in the first half of the valve body and proximal to the second end of the valve chamber for directing the fluid out of the valve chamber;
- a diaphragm sandwiched between the first half and the second half of the valve body;
- and
- a flow passage defined in the second half of the valve body and having an opening centrally located relative to the valve chamber for actuation of the diaphragm to close or open the oblong diaphragm valve.
A system, comprising:
- a body having a first end face;
- a plate having a second end face;
- and
- an oblong diaphragm valve having:
- a first part and a second part, the first part of the oblong diaphragm valve having a first curved surface carved into the first end face of the body, the second part of the oblong diaphragm valve having a second curved surface carved into the second end face of the plate, the first curved surface and the second curved surface having same or substantially same oblong shape, the oblong shape having a length and a width, the length greater than the width;
- a valve chamber having a volume defined by the first curved surface and the second curved surface in the first part and the second part of the oblong diaphragm valve, the valve chamber having a first end and a second end defined by the length of the oblong shape;
- an inlet defined in the first part of the oblong diaphragm valve and proximal to the first end of the valve chamber for directing a fluid into the valve chamber;
- an outlet defined in the first half of the oblong diaphragm valve and proximal to the second end of the valve chamber for directing the fluid out of the valve chamber;
- a diaphragm sandwiched between the first part and the second part of the oblong diaphragm valve;
- and
- a flow passage defined in the second part of the oblong diaphragm valve and having an opening centrally located relative to the valve chamber for actuation of the diaphragm to close or open the oblong diaphragm valve.
Dependencies are inferred from the claim text.