Back to results
US 2016/0341314 A1Published application
Key seal and valve
AssigneeProserv Operations, Inc.
InventorsPreston WEINTRAUB, Joseph QUACKENBUSH
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeProserv Operations, Inc.
InventorsPreston WEINTRAUB, Joseph QUACKENBUSH
Estimating the term…
A key seal preferably includes a first circular seal portion, a second rounded seal portion and a third rounded seal portion. The first circular seal portion preferably has generally circular cross-section. The second rounded seal portion preferably has a bottom side which is connected to the first seal portion, and has a cross-section which is smaller than that of the first circular seal portion. The third rounded seal portion preferably has a top side which is connected to the first seal portion, and has a cross-section which is smaller than that of the first circular seal portion. The first, second and third seal portions may be integrally formed. They key seal may be installed in a hydroseal assembly around the pin section of a hydroseal, and between a seal and a block section of the hydroseal.
A seal assembly, comprising:
The sliding seal assembly of claim 7, wherein the body is moveable between a first position wherein the second surface overlies the opening in the first seal plate and the fourth surface overlies the opening in the second sealing plate, and a second position wherein the second surface does not overlie the opening in the first seal plate and the fourth surface does not overlie the opening in the second sealing plate.
The sliding seal assembly of claim 7, wherein in the sealing ring is moveable between a first sealing ring position wherein the sealing ring contacts the pin and a second sealing ring position wherein the sealing ring contacts the circumferential wall of the opening.
The sliding seal assembly of claim 7, wherein body is received within a valve bore in a housing;
The seal assembly of claim 7, wherein the sealing ring body includes a first portion having the first width, and a second and third portion connected thereto across the second width.
The seal assembly of claim 7, wherein the width of the seal gland is larger than the first width of the seal body.
The seal assembly of claim 7, wherein in a free state, the width of the seal gland is less than the second width of the sealing ring.
The seal assembly of claim 7, wherein the depth of the seal gland is greater than the first width.
Dependencies are inferred from the claim text.