US4645174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting arrangement for a critical flow device
Assignee: Elster American Meter Co LLC
•
Filing: 1985-05-16
•
Granted: 1987-02-24
•
Expires: 2005-05-16
Abstract
Abstract An axial flow valve has its cage bolt replaced by a sonic nozzle. This device may then be permanently installed in a pipeline in series with a meter to provide the facility for on site calibration of the meter.
Inventors
- 👤 Irwin A. Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:31
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/07; F16K7/075; G; G01; G01F; G01F25/00; G01F25/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
122 words
In combination: a valve having an inlet and an outlet; a sonic nozzle; and means for mounting said sonic nozzle in said valve so that when said valve is closed to otherwise block flow from said inlet to said outlet said sonic nozzle is in position so that all flow is directed from said inlet to said outlet through said sonic nozzle; said valve is an axial flow valve having an expandable sleeve of resilient material positioned within a housing on a pair of slotted cage members of conical shape and said mounting means is arranged to support said sonic nozzle substantially along the central axis of said valve to provide a flow path therethrough independent of the state of said sleeve.
Claim 2
Dependent Claim
122 words
In combination: a valve having an inlet and an outlet; a sonic nozzle; and means for mounting said sonic nozzle in said valve so that when said valve is closed to otherwise block flow from said inlet to said outlet said sonic nozzle is in position so that all flow is directed from said inlet to said outlet through said sonic nozzle; said valve is an axial flow valve having an expandable sleeve of resilient material positioned within a housing on a pair of slotted cage members of conical shape and said mounting means is arranged to support said sonic nozzle substantially along the central axis of said valve to provide a flow path therethrough independent of the state of said sleeve.
Claim 3
Dependent Claim
32 words
The combination according to claim 1 wherein said mounting means is arranged to allow flow through said sonic nozzle when said valve is open as well as when said valve is closed.
Claim 4
Dependent Claim
21 words
The combination according to claim 1 wherein said mounting means further includes means for fastening the cage members of said valve.
Claim 5
Dependent Claim
20 words
The combination according to claim 1 wherein said mounting means further includes means for accommodating selected sizes of sonic nozzles.
Claim 6
Dependent Claim
33 words
The combination according to claim 4 wherein said accommodating means includes an adaptor means for fastening the cage member of said valve and means within said adaptor means for holding a sonic nozzle.
References Cited (Backward Citations)
US136746A
Cited
US857046A
Cited
US1298471A
Cited
US1559155A
Cited
US2764891A
Cited
US2898088A
Cited
US3177699A
Cited
US3469442A
Cited
US3483892A
Cited
US3836113A
Cited
US4130128A
Cited
US4187872A
Cited
US4497468A
Cited
US4519574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-23 | 1990-08-25 | 1991-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-23 | 1994-08-25 | 1995-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-23 | 1998-08-25 | 1999-02-24 | $7700.00 | Window Closed / Lapsed |