GATE VALVE
First Claim
Patent Images
1. A gate valve for a fluid, comprising:
- a gate having upper and lower ends, at least two upper and two lower side wall surfaces, and a gate opening extending through the gate;
a valve body having a fluid passageway passing through the valve body, and the gate is disposed within the valve body for upward or downward movement, whereby the gate opening may be disposed in a first substantially mating, fluid transmitting relationship with the fluid passageway of the valve body or in a second substantially non-mating, non-fluid transmitting relationship with the fluid passageway of the valve body;
the valve body having a gate cavity, having upper and lower ends, in which the gate moves upwardly and downwardly; and
the lower end of the gate cavity having an enlarged space wherein sand or other debris from the fluid may accumulate.
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Accused Products
Abstract
A gate valve and a method for making a gate valve for use with abrasive fracturing fluids, include provided enlarged spaces in the gate valve body wherein sand or other debris from the fracturing fluid may accumulate without affecting the operation of the gate of the gate valve.
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Citations
20 Claims
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1. A gate valve for a fluid, comprising:
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a gate having upper and lower ends, at least two upper and two lower side wall surfaces, and a gate opening extending through the gate; a valve body having a fluid passageway passing through the valve body, and the gate is disposed within the valve body for upward or downward movement, whereby the gate opening may be disposed in a first substantially mating, fluid transmitting relationship with the fluid passageway of the valve body or in a second substantially non-mating, non-fluid transmitting relationship with the fluid passageway of the valve body; the valve body having a gate cavity, having upper and lower ends, in which the gate moves upwardly and downwardly; and the lower end of the gate cavity having an enlarged space wherein sand or other debris from the fluid may accumulate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for making a gate valve for use with an abrasive fracturing fluid, comprising:
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providing a gate having upper and lower ends, at least two upper and two lower side wall surfaces, and a gate opening extending through the gate; providing a valve body having a fluid passageway passing through the valve body, and disposing the gate within the valve body for upward or downward movement, whereby the gate opening may be disposed in a first substantially mating, fluid transmitting relationship with the fluid passageway of the valve body or in a second substantially non-mating, non-fluid transmitting relationship with the fluid passageway of the valve body; providing the valve body with a gate cavity, having upper and lower ends, in which the gate moves upwardly and downwardly; and providing the lower end of the gate cavity with an enlarged space wherein sand or other debris from the abrasive fracturing fluid may accumulate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification