Patent US4740985A successfully refreshed from Google Patents.
US4740985A
Expired / Lapsed
US
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Getter assembly
Assignee: Honeywell Inc
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Filing: 1986-12-31
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Granted: 1988-04-26
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Expires: 2006-12-31
Abstract
Abstract In the present invention, a getter assembly is formed by a housing containing a cavity in which the passageway into the cavity is covered by an end cover which is permeable to selected gases. Internal to the cavity formed by the housing is an activated getter material for eliminating selected gas contaminants within the cavity.
Inventors
- 👤 Theodore J. Podgorski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:17
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03; H01S3/036; H01S3/05; H01S3/08; H01S3/081; H01S3/083; H01S3/0835
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
A getter assembly for use in a gas discharge device comprising: a housing forming a cavity including a passageway into said cavity; an end cover for covering said passageway, said end cover being comprised of a gas permeable material; and an activated getter material in said cavity for eliminating selected gas contaminants within said cavity, said getter material being adapted to be electrically connected between first and second electrodes disposed within said cavity.
Claim 2
Dependent Claim
73 words
A getter assembly for use in a gas discharge device comprising: a housing forming a cavity including a passageway into said cavity; an end cover for covering said passageway, said end cover being comprised of a gas permeable material; and an activated getter material in said cavity for eliminating selected gas contaminants within said cavity, said getter material being adapted to be electrically connected between first and second electrodes disposed within said cavity.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 wherein said housing includes an insulating material through which said first and second electrodes pass therethrough.
Claim 4
Dependent Claim
13 words
The assembly of claim 1 wherein said end cover is comprised of Zirconium.
Claim 5
Dependent Claim
107 words
A ring laser angular rate sensor comprising: a laser block having a plurality of interconnected cavities forming a polygonal closed loop path; at least a first passageway in communication with said interconnected cavities and an end surface of said block; and a getter assembly including, a housing forming a cavity including a passageway into said cavity; an end cover for blocking said passageway, said end cover being comprised of a gas permeable material, and an activated getter material in said cavity for eliminating selected gas contaminants within said cavity, said getter material being adapted to be electrically connected between first and second electrodes disposed within said cavity.
Claim 6
Dependent Claim
107 words
A ring laser angular rate sensor comprising: a laser block having a plurality of interconnected cavities forming a polygonal closed loop path; at least a first passageway in communication with said interconnected cavities and an end surface of said block; and a getter assembly including, a housing forming a cavity including a passageway into said cavity; an end cover for blocking said passageway, said end cover being comprised of a gas permeable material, and an activated getter material in said cavity for eliminating selected gas contaminants within said cavity, said getter material being adapted to be electrically connected between first and second electrodes disposed within said cavity.
Claim 7
Dependent Claim
33 words
The sensor of claim 4 wherein said end cover is electrically connected to a source of energy for permitting an electrical current to pass therefrom to another electrode in communication with said gas.
References Cited (Backward Citations)
US4503543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-26 | 1991-10-26 | 1992-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-26 | 1995-10-26 | 1996-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-26 | 1999-10-26 | 2000-04-26 | $7700.00 | Window Closed / Lapsed |