Patent US3354722A successfully refreshed from Google Patents.
US3354722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual manifold pressure gauge
Assignee: Ametek Inc
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Filing: 1965-10-24
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Granted: 1967-11-28
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Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Waite
- 👤 Leon D Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:14
CPC Classifications
G; G01; G01L; G01L13/00; G01L13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A DIFFERENTIAL GAUGE COMPRISING IN COMBINATION, A CASE; ALIGNED SUPPOSRTING MEANS MOUNTED ON EACH SIDE OF THE TRANSVERSE CENTERLING OF SAID CASE; BELLOWS MEANS INCLUDING MEANS AT EACH END THEREOF ADAPTED TO BE CONNECTED TO THE RESPECTIVE SUPPORTING MEANS SUCH THAT EACH MAY BE ROTATABLY ADJUSTED RELATIVE TO THE OTHER; SUPPORTING MEANS CONNECTING THE OPPOSITE ENDS OF SAID BELLOWS MEANS TOGETHER AS WELL AS TO A LIGHT; LINKAGE CONNECTING SAID LINK TO THE MOVEMENT OF SAID GAUGE; AND MEANS FORMING PART OF SAID BELLOWS SUPPORTING MEANS FOR ENSURING MOVEMENT OF SAID LINK ALONG A RECTILINEAR PATH PARALLEL TO THE AXIS OF SAID SUPPORTING MEANS WHEN SAID BELLOWS MEANS MOVE DUE TO DIFFERENT PRESSURES WITHIN SAID BELLOWS MEANS.
Claim 2
Dependent Claim
117 words
A DIFFERENTIAL GAUGE COMPRISING IN COMBINATION, A CASE; ALIGNED SUPPOSRTING MEANS MOUNTED ON EACH SIDE OF THE TRANSVERSE CENTERLING OF SAID CASE; BELLOWS MEANS INCLUDING MEANS AT EACH END THEREOF ADAPTED TO BE CONNECTED TO THE RESPECTIVE SUPPORTING MEANS SUCH THAT EACH MAY BE ROTATABLY ADJUSTED RELATIVE TO THE OTHER; SUPPORTING MEANS CONNECTING THE OPPOSITE ENDS OF SAID BELLOWS MEANS TOGETHER AS WELL AS TO A LIGHT; LINKAGE CONNECTING SAID LINK TO THE MOVEMENT OF SAID GAUGE; AND MEANS FORMING PART OF SAID BELLOWS SUPPORTING MEANS FOR ENSURING MOVEMENT OF SAID LINK ALONG A RECTILINEAR PATH PARALLEL TO THE AXIS OF SAID SUPPORTING MEANS WHEN SAID BELLOWS MEANS MOVE DUE TO DIFFERENT PRESSURES WITHIN SAID BELLOWS MEANS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |