Patent US2997450A successfully refreshed from Google Patents.
US5111547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming precision liquid/vapor separating bristle assembly
Assignee: Shell USA Inc
•
Filing: 1990-11-19
•
Granted: 1992-05-12
•
Expires: 2010-11-19
Abstract
Abstract A bristle assembly and method for making the same. The bristle assembly is particularly useful for forming into a brush-like arrangement for use in separating the liquid and vapor phases for determining the steam quality in a thermal injection well as described in U.S. Pat. No. 4,736,627.
Inventors
- 👤 Boyd B. Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:14
CPC Classifications
G; G01; G01N; G01N9/00; G01N9/26; G01N9/266; E; E21; E21B; E21B43/00; E21B43/02; E21B43/08; E21B43/086; E21B43/16; E21B43/24; E21B49/00; E21B49/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
48 words
A bristle assembly comprising: a circular shaped array of uniformly spaced bristles bent to extend radially outward from one end of a cylindrical flange, each bristle being separated from an adjacent bristle by a slot which extends into the flange past a location where the bristle is bent.
Claim 2
Dependent Claim
48 words
A bristle assembly comprising: a circular shaped array of uniformly spaced bristles bent to extend radially outward from one end of a cylindrical flange, each bristle being separated from an adjacent bristle by a slot which extends into the flange past a location where the bristle is bent.
Claim 3
Dependent Claim
18 words
The bristle assembly of claim 1 including a plurality of arrays of bristles stacked on a support member.
Claim 4
Dependent Claim
21 words
The bristle assembly of claim 1 wherein each bristle has a concave shape in the area adjacent to the cylindrical flange.
Claim 5
Dependent Claim
22 words
The bristle assembly of claim 1 wherein each bristle has an overall length-to-width ratio of 40-70 and a width-to-thickness ratio of 5-20.
Claim 6
Dependent Claim
19 words
The bristle assembly of claim 1 wherein the bristles and flange are a single piece of formed sheet metal.
References Cited (Backward Citations)
DE216879C
Cited
US2795807A
Cited
US2796047A
Cited
US2922489A
Cited
US2993565A
Cited
US3204278A
Cited
US3609789A
Cited
US4736627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-12 | 1995-11-11 | 1996-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-12 | 1999-11-11 | 2000-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-12 | 2003-11-11 | 2004-05-12 | $7700.00 | Window Closed / Lapsed |