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US4548374A
Expired / Lapsed
US
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Ultrasonic scanning apparatus and positioning system
Assignee: General Electric Co
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Filing: 1981-08-07
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Granted: 1985-10-22
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Expires: 2001-08-07
Abstract
Abstract Positioning apparatus for vertically moving a scanning assembly includes a vertical support, a first arm pivotally attached to the support and to the scanning assembly, and a second arm pivotally attached to the support and to the scanning assembly with the first and second arms being parallel. A counter-balance is provided and is attached to the support by third and fourth arms which are pivotally attached to the support and to the counter-balance.
Inventors
- 👤 Craig R. Thompson
- 👤 Ted F. Naumann, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:44
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/001; B23Q11/0017; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/50; B23Q1/54; B23Q1/5468; G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/35; G10K11/352
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
Positioning apparatus for vertically moving a scanning assembly comprising a verticl support, a first arm pivotally mounted to said support and to said assembly, a second arm pivotally attached to said vertical support and to said assembly, said first and second arms being parallel, a counterweight and coupling means for coupling said counterweight to the vertical support, said coupling means comprising third and fourth arms each pivotally attached to said vertical support and to said counterweight, said third and fourth arms being parallel, and a fifth arm pivotally attached to said first arm and to said counterweight.
Claim 2
Dependent Claim
97 words
Positioning apparatus for vertically moving a scanning assembly comprising a verticl support, a first arm pivotally mounted to said support and to said assembly, a second arm pivotally attached to said vertical support and to said assembly, said first and second arms being parallel, a counterweight and coupling means for coupling said counterweight to the vertical support, said coupling means comprising third and fourth arms each pivotally attached to said vertical support and to said counterweight, said third and fourth arms being parallel, and a fifth arm pivotally attached to said first arm and to said counterweight.
Claim 3
Dependent Claim
16 words
Scanning apparatus as defined in claim 1 wherein said first and second linkages comprise U-shaped brackets.
Claim 4
Dependent Claim
21 words
Scanning apparatus as defined in claim 2 wherein said first linkage further includes a tubular support member within said U-shaped bracket.
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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) | 1988-10-21 | 1989-04-22 | 1989-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-21 | 1993-04-22 | 1993-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-21 | 1997-04-22 | 1997-10-22 | $7700.00 | Window Closed / Lapsed |