US4581536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation detection tube having spurious radiation shield
Assignee: Detector Electronics Corp
•
Filing: 1983-03-04
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Granted: 1986-04-08
•
Expires: 2003-03-04
Abstract
Abstract Radiation detection tube having a glass envelope surrounding an anode and cathode, and having a further conductive surface surrounding a portion of the glass envelope in the region of the anode-cathode gap, the exterior conductor electrically coupled to the anode.
Inventors
- 👤 Claudio C. Groppetti
- 👤 Brian R. Stinger
- 👤 James M. Celt
- 👤 Theodore E. Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:56
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
50 words
In a radiation detection tube having a glass envelope surrounding an anode and cathode in a gaseous mixture, the improvement comprising a conductive band on the exterior of said glass envelope in the region of said anode and cathode; and an electrical conductor coupling said conductive band to said anode.
Claim 2
Dependent Claim
50 words
In a radiation detection tube having a glass envelope surrounding an anode and cathode in a gaseous mixture, the improvement comprising a conductive band on the exterior of said glass envelope in the region of said anode and cathode; and an electrical conductor coupling said conductive band to said anode.
Claim 3
Dependent Claim
20 words
The improvement of claim 1, wherein said conductive band is positioned to bridge the gap between said anode and cathode.
Claim 4
Dependent Claim
69 words
A radiation detection tube comprising (a) an anode element; (b) a cathode element parallel to said anode and at a predetermined spacing from said anode; (c) a generally cylindrical glass envelope surrounding said anode and cathode; (d) a conductive band circumferentially affixed to the external surface of said glass envelope in the region of said anode-cathode spacing; and (e) a conductor electrically connecting said conductive band to said anode.
Claim 5
Dependent Claim
69 words
A radiation detection tube comprising (a) an anode element; (b) a cathode element parallel to said anode and at a predetermined spacing from said anode; (c) a generally cylindrical glass envelope surrounding said anode and cathode; (d) a conductive band circumferentially affixed to the external surface of said glass envelope in the region of said anode-cathode spacing; and (e) a conductor electrically connecting said conductive band to said anode.
Claim 6
Dependent Claim
23 words
The apparatus of claim 3 wherein said conductive band is constructed sufficiently wide to bridge the gap between said anode and said cathode.
Claim 7
Dependent Claim
23 words
The apparatus of claim 4, further comprising at least one conductive pin supporting said anode element and projecting externally of said glass envelope.
Claim 8
Dependent Claim
23 words
The apparatus of claim 5, further comprising at least one conductive pin supporting said cathode element and projecting externally of said glass envelope.
Claim 9
Dependent Claim
20 words
The apparatus of claim 4, wherein said conductive band is constructed of metal foil at least one-half inch in width.
Claim 10
Dependent Claim
15 words
The apparatus of claim 4, wherein said anode and said cathode are generally planar elements.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |