US3590243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sample insertion vacuum lock and probe assembly for mass spectrometers
Assignee: Avco Corp
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Filing: 1969-06-30
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Granted: 1971-06-29
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Expires: 1989-06-30
Abstract
Abstract A sample insertion vacuum lock and probe assembly for use in mass spectrometers is disclosed in which an axially extending sample carrier is mounted for reciprocal movement into and out of an ion chamber. Electrical connection with the sample carrier probe is made through sliding engagement of the probe with an electrical contact support assembly mounted in the ion chamber. A vacuum lock and a vacuum system is provided to insure that the vacuum in the ion chamber is not disturbed. Mechanical locking means and positioning means are included to prevent accidental destruction of the vacuum and to precisely position the sample within the ion chamber.
Inventors
- 👤 Richard E Perrin
- 👤 Billy A Hopper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:45
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/04; H01J49/0495
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
68 words
The combination as set forth in claim 1 further comprising filament means secured to the end of said carrying portion wherein said filament means are aligned relative to the ion beam upon full insertion of the specimen insertion probe into the ion chamber; conducting means connecting said stationary contact elements with said filament means; and wherein said specimen carrier portion is formed of a low water adsorption ceramic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |