US4088155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-plugging pressure tap
Assignee: United States Department of Energy
•
Filing: 1973-10-17
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Granted: 1978-05-09
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Expires: 1993-10-17
Abstract
Abstract A pressure tap having utility in an environment of a solid-gas phase process flow includes a tubular coupling part having attached over a passage therethrough at an end opening thereof exposed to the flow a grating of spaced bars, and affixed internally across a passage therethrough so as to cover over an opening therein a screen which maintains contained within the passage between it and the grating a matrix of smooth spheres. The grating bars are so oriented by the disposition of the aforesaid end opening with respect to the flow such that accumulations of solids therebetween tending to bridge the opening are removed therefrom by the flow.
Inventors
- 👤 Joseph P. Echtler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:07
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/008
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
A tap for a pressure determining means, said tap being adapted for use in the path of a solid-gas phase process flow contained in a vessel therefor, comprising a casing having a conduit providing a passage therethrough between opposite end openings thereof, one of said openings being adapted to be disposed in said path, and the other of said openings having connected thereto a fluid flow communicating means adapted to extend between said casing and said pressure determining means outside said vessel, a plurality of spaced bars attached to said casing over said one end opening thereof, and a perforated device affixed within said casing so as to screen fully said passage thereof, and a multiplicity of substantially uniform rounded elements enclosed within said passage between said spaced bars and said perforated device.
Claim 2
Dependent Claim
133 words
A tap for a pressure determining means, said tap being adapted for use in the path of a solid-gas phase process flow contained in a vessel therefor, comprising a casing having a conduit providing a passage therethrough between opposite end openings thereof, one of said openings being adapted to be disposed in said path, and the other of said openings having connected thereto a fluid flow communicating means adapted to extend between said casing and said pressure determining means outside said vessel, a plurality of spaced bars attached to said casing over said one end opening thereof, and a perforated device affixed within said casing so as to screen fully said passage thereof, and a multiplicity of substantially uniform rounded elements enclosed within said passage between said spaced bars and said perforated device.
Claim 3
Dependent Claim
21 words
The pressure tap of claim 1 wherein said conduit is tubular and said openings reside in planes parallel to each other.
Claim 4
Dependent Claim
31 words
The pressure tap of claim 1 wherein said conduit is screw threaded internally, and said perforated device is a partition plate affixed in said conduit by connection with said threads thereof.
Claim 5
Dependent Claim
28 words
The pressure tap of claim 1 wherein said plurality of spaced bars constitute a grating comprising bars disposed in parallel over said one end opening of said casing.
Claim 6
Dependent Claim
13 words
The pressure tap of claim 1 wherein said rounded elements are spherically shaped.
References Cited (Backward Citations)
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Cited
US335366A
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US458768A
Cited
US515788A
Cited
US232948A
Cited
US1783163A
Cited
US2654659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-08 | 1981-11-07 | 1982-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-08 | 1985-11-07 | 1986-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-08 | 1989-11-07 | 1990-05-09 | $7700.00 | Window Closed / Lapsed |