US3822592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral orifice assembly for head meters
Assignee: Moore Products Co
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Filing: 1973-03-29
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Granted: 1974-07-09
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Expires: 1993-03-29
Abstract
Abstract An orifice assembly serving as a primary element of a head flow meter whose secondary element includes a pressure capsule having a pair of pressure chambers disposed within a housing and coupled to respective inlets on the housing wall. The assembly comprises a manifold body directly mounted on the housing wall and including a major longitudinal passage that is connectable to a line carrying the fluid whose flow rate is to be measured. The major passage is divided into two sections by an intermediate breech in the manifold body, the two sections communicating with respective lateral ports that register with the inlets leading to the pressure chambers. Receivable in the breech is a breech block provided with a minor longitudinal passage that links the two sections of the major passage when the block is in place. A replaceable orifice member is insertable in the minor passage to restrict the flow of fluid therethrough to induce a differential pressure that is sensed by the pressure capsule.
Inventors
- 👤 H Marx
- 👤 W Siegel
- 👤 H Aafjes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:16
CPC Classifications
G; G01; G01P; G01P5/00; G01P5/14; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/38; G01F1/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
203 words
An orifice assembly for a flow meter secondary element within whose housing is a differential pressure capsule having a pair of pressure chambers in communication with and symmetrically arranged with respect to first and second inlets formed at spaced positions on a wall of the housing, said assembly comprising: A. a manifold body mountable against said housing wall and including a longitudinal major passage connectable to a line carrying the fluid whose rate is to be measured, said major passage being separated into first and second sections by an intermediate breech section, said first and second sections being symmetrically arranged with respect to said pressure chambers, said first section communicating with a first lateral port which registers with said first inlet, said second station communicating with a second lateral port which registers with said second inlet; B. a removable breech block which is receivable in said breech and includes a longitudinal minor passage that is in axial alignment with said major passage and links the first and second sections of the major passage; and C. a replaceable orifice member insertable in said minor passage to restrict the flow of fluid therethrough to produce a differential head which is sensed by said pressure capsule.
Claim 2
Dependent Claim
203 words
An orifice assembly for a flow meter secondary element within whose housing is a differential pressure capsule having a pair of pressure chambers in communication with and symmetrically arranged with respect to first and second inlets formed at spaced positions on a wall of the housing, said assembly comprising: A. a manifold body mountable against said housing wall and including a longitudinal major passage connectable to a line carrying the fluid whose rate is to be measured, said major passage being separated into first and second sections by an intermediate breech section, said first and second sections being symmetrically arranged with respect to said pressure chambers, said first section communicating with a first lateral port which registers with said first inlet, said second station communicating with a second lateral port which registers with said second inlet; B. a removable breech block which is receivable in said breech and includes a longitudinal minor passage that is in axial alignment with said major passage and links the first and second sections of the major passage; and C. a replaceable orifice member insertable in said minor passage to restrict the flow of fluid therethrough to produce a differential head which is sensed by said pressure capsule.
Claim 3
Dependent Claim
19 words
An assembly as set forth in claim 1, wherein said orifice member is a cylinder having a constriction therein.
Claim 4
Dependent Claim
38 words
An assembly as set forth in claim 1, further including union connectors secured to the ends of said manifold body and coupled to respective sections of said major passage to effect connections to the line carrying the fluid.
Claim 5
Dependent Claim
26 words
An assembly as set forth in claim 1, wherein said breech block projects from a mounting plate which is fastened by screws to said manifold body.
Claim 6
Dependent Claim
21 words
An assembly as set forth in claim 1, wherein said minor passage is provided with sealing O-rings at either end thereof.
Claim 7
Dependent Claim
28 words
An assembly as set forth in claim 1, wherein said secondary element includes a force beam structure whose lower end is coupled to diaphragms in said pressure chambers.
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |