US3610286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orifice valve assembly
Assignee: Camco Inc
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Filing: 1969-10-27
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Granted: 1971-10-05
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Expires: 1989-10-27
Abstract
Abstract The improvement in an orifice valve assembly having a rotary plug valve carrying an orifice plate therein for use in a conduit for measuring the fluid flow therethrough by providing two stems integrally connected to the valve plug for preventing any floating action of the plug when operating under line pressure fluctuations. The second stem having an orifice plate slot extending axially and transversely entirely through the second stem with the body having a circular recess for receiving and supporting the second stem. The body including a groove of a width less than the diameter of the recess with the second stem including two flat parallel sides which when aligned with the groove allows insertion of the second stem into the recess with the flat sides being at an axial angle to both the valve plug open and close positions thereby providing bearing surfaces for the second stem in the recess. Four internal bypass openings in the valve plug extending from the upstream side to the downstream side of the valve when the orifice plate is aligned with the flow conduit.
Inventors
- 👤 Harold E Mcgowen Jr
- 👤 Howard M King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:47
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0605; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6154
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
182 words
In an orifice valve assembly having a body having a flow passage therethrough, a valve plug rotatably housed on a first stem by the body on an axis transverse to said passage and provided with an opening which is shiftable with the plug into and out of alignment with the passage in the body, said plug having an internal slot at the axis of plug rotation transversely of said passageway and opens through the plug at a side opposite the first stem for receiving an orifice plate, the improvement comprising, a second stem integrally connected to said valve plug and axially aligned with the first stem, said slot axially and transversely extending entirely through the second stem, said body having a circular recess on the axis of rotation of the valve plug for receiving and supporting the second stem, and four internal bypass openings in the valve plug positioned extending from the upstream side to the downstream side of the plug valve when the slot is aligned with the passageway for providing maximum bypass flow while the orifice plate is being changed.
Claim 2
Dependent Claim
182 words
In an orifice valve assembly having a body having a flow passage therethrough, a valve plug rotatably housed on a first stem by the body on an axis transverse to said passage and provided with an opening which is shiftable with the plug into and out of alignment with the passage in the body, said plug having an internal slot at the axis of plug rotation transversely of said passageway and opens through the plug at a side opposite the first stem for receiving an orifice plate, the improvement comprising, a second stem integrally connected to said valve plug and axially aligned with the first stem, said slot axially and transversely extending entirely through the second stem, said body having a circular recess on the axis of rotation of the valve plug for receiving and supporting the second stem, and four internal bypass openings in the valve plug positioned extending from the upstream side to the downstream side of the plug valve when the slot is aligned with the passageway for providing maximum bypass flow while the orifice plate is being changed.
Claim 3
Dependent Claim
234 words
In an orifice valve assembly having a body having a flow passage therethrough, a valve rotatably housed on a first stem by the body on an axis transverse to said passage and provided with an opening which is shiftable with the plug into and out of alignment with the passage in the body, said plug having an internal slot at the axis of plug rotation transversely of said passageway and opens through the plug at a side opposite the first stem for receiving an orifice plate, the improvement comprising, a second stem integrally connected to said valve plug and axially aligned with the first stem, said slot axially and transversely extending entirely through the second stem, said body having a circular recess on the axis of rotation of the valve plug for receiving and supporting the second stem, said body including a groove positioned transversely to and extending into said recess and having a width less than the diameter of the recess, and said second stem having a generally circular circumference but including two flat parallel sides spaced apart a distance less than the width of said groove whereby said second stem may be transversely inserted into said recess through the groove, said parallel sides being at an axial angle to both the valve plug open and close positions thereby providing bearing surfaces for the second stem At both valve open and close positions.
Claim 4
Dependent Claim
234 words
In an orifice valve assembly having a body having a flow passage therethrough, a valve rotatably housed on a first stem by the body on an axis transverse to said passage and provided with an opening which is shiftable with the plug into and out of alignment with the passage in the body, said plug having an internal slot at the axis of plug rotation transversely of said passageway and opens through the plug at a side opposite the first stem for receiving an orifice plate, the improvement comprising, a second stem integrally connected to said valve plug and axially aligned with the first stem, said slot axially and transversely extending entirely through the second stem, said body having a circular recess on the axis of rotation of the valve plug for receiving and supporting the second stem, said body including a groove positioned transversely to and extending into said recess and having a width less than the diameter of the recess, and said second stem having a generally circular circumference but including two flat parallel sides spaced apart a distance less than the width of said groove whereby said second stem may be transversely inserted into said recess through the groove, said parallel sides being at an axial angle to both the valve plug open and close positions thereby providing bearing surfaces for the second stem At both valve open and close positions.
Claim 5
Dependent Claim
17 words
The apparatus of claim 2 wherein the groove is positioned on the upstream side of the recess.
Claim 6
Dependent Claim
13 words
The apparatus of claim 2 wherein the groove is wider than the slot.
Claim 7
Dependent Claim
36 words
The apparatus of claim 2 including four internal bypass openings in the valve plug positioned extending from the upstream side to the downstream side of the plug valve when the slot is aligned with the passageway.
Claim 8
Dependent Claim
31 words
The apparatus of claim 2 wherein the parallel sides are at an axial angle such that the sides remain out of alignment with the groove during rotation of said valve plug.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |