US3136883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal for moving electron beam column
Assignee: RTX Corp
•
Filing: 1962-04-02
•
Granted: 1964-06-09
•
Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Edward W Radtke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:27
CPC Classifications
B; B23; B23K; B23K15/00; B23K15/06; H; H01; H01J; H01J37/00; H01J37/02; H01J37/18; Y; Y10; Y10S; Y10S164/00; Y10S164/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
APPARATUS FOR WORKING MATERIALS WITH A BEAM OF CHARGED PARTICLES COMPRISING: MEANS FOR CREATING A LOW PRESSURE ENVIRONMENT ABOUT AT LEAST A REGION OF A MATERIAL TO BE WORKED, SAID MEANS HAVING AN OPENING IN THE TOP THEREOF; MEANS FOR GENERATING AN INTENSE BEAM OF CHARGED PARTICLES; MEANS MOVABLY SUPPORTING SAID BEAM GENERATING MEANS EXTERIOR OF AND ALIGNED WITH A PORTION OF THE OPENING IN THE TOP OF SAID LOW PRESSURE ENVIRONMENT CREATING MEANS SO THAT THE BEAM OF CHARGED PARTICLES PRODUCED BY SAID BEAM GENERATING MEANS MAY PASS THROUGH THE OPENING AND IMPINGE UPON A MATERIAL TO BE WORKED, SAID SUPPORTING MEANS BEING IN SEALED RELATIONSHIP WITH SAID BEAM GENERATING MEANS AND EXTENDING THEREFROM A DISTANCE AT LEAST EQUAL TO THE DESIRED RANGE OF MOVEMENT OF THE BEAM GENERATING MEANS WHEREBY THE PORTIONS OF SAID OPENING NOT UNDER SAID BEAM GENERATING MEANS ARE COVERED BY SAID SUPPORTING MEANS REGARDLESS OF THE POSITION OF THE BEAM GENERATING MEANS; AND MEANS POSITIONED BETWEEN SAID SUPPORTING MEANS AND THE TOP OF SAID LOW PRESSURE ENVIROMENT CREATING MEANS FOR PROVIDING AN AIR TIGHT SLIDING SEAL AROUND SAID OPENING.
Claim 2
Dependent Claim
185 words
APPARATUS FOR WORKING MATERIALS WITH A BEAM OF CHARGED PARTICLES COMPRISING: MEANS FOR CREATING A LOW PRESSURE ENVIRONMENT ABOUT AT LEAST A REGION OF A MATERIAL TO BE WORKED, SAID MEANS HAVING AN OPENING IN THE TOP THEREOF; MEANS FOR GENERATING AN INTENSE BEAM OF CHARGED PARTICLES; MEANS MOVABLY SUPPORTING SAID BEAM GENERATING MEANS EXTERIOR OF AND ALIGNED WITH A PORTION OF THE OPENING IN THE TOP OF SAID LOW PRESSURE ENVIRONMENT CREATING MEANS SO THAT THE BEAM OF CHARGED PARTICLES PRODUCED BY SAID BEAM GENERATING MEANS MAY PASS THROUGH THE OPENING AND IMPINGE UPON A MATERIAL TO BE WORKED, SAID SUPPORTING MEANS BEING IN SEALED RELATIONSHIP WITH SAID BEAM GENERATING MEANS AND EXTENDING THEREFROM A DISTANCE AT LEAST EQUAL TO THE DESIRED RANGE OF MOVEMENT OF THE BEAM GENERATING MEANS WHEREBY THE PORTIONS OF SAID OPENING NOT UNDER SAID BEAM GENERATING MEANS ARE COVERED BY SAID SUPPORTING MEANS REGARDLESS OF THE POSITION OF THE BEAM GENERATING MEANS; AND MEANS POSITIONED BETWEEN SAID SUPPORTING MEANS AND THE TOP OF SAID LOW PRESSURE ENVIROMENT CREATING MEANS FOR PROVIDING AN AIR TIGHT SLIDING SEAL AROUND SAID OPENING.
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) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |