Patent US3084672A successfully refreshed from Google Patents.
US3084672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic stapling tool
Assignee: Signode Corp
•
Filing: 1960-05-16
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Granted: 1963-04-09
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Expires: 1980-05-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Dalton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:10
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/04; B25C1/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A PNEUMATIC STAPLING TOOL FOR DRIVING STAPLES INTO A WORKPIECE HAVING AN AIR INLET ADAPTED TO BE CONNECTED TO A SOURCE OF AIR UNDER PRESSURE, AN AIR EXHAUST, AND A VALVE ASSEMBLY CONTROLLING THE FLOW OF AIR IN THROUGH THE AIR INLET AND OUT THROUGH THE AIR EXHAUST, THE COMBINATION INCLUDING, MEANS FORMING A CYLINDER HAVING UPPER AND LOWER SECTIONS WITH SAID UPPER SECTION HAVING A SLIGHTLY LARGER DIAMETER THAN SAID LOWER SECTION, A STAPLE DRIVING PISTON RECIPROCABLE IN SAID CYLINDER BETWEEN RETRACTED AND ADVANCED POSITIONS AND HAVING AN UPPER HEAD PORTION OF LARGER DIAMETER THAN THE REMAINDER OF SAID PISTON SLIDABLE ONLY IN SAID UPPER CYLINDER SECTION, LATERAL PORT MEANS VENTING SAID CYLINDER TO THE ATMOSPHERE BELOW SAID UPPER HEAD PORTION OF SAID PISTON WHEN SAID PISTON IS MOVED FROM RETRACTED POSITION, MEANS CARRIED IN THE WALL OF SAID LOWER CYLINDER PORTION FOR SEALING SAID PISTON
Claim 2
Dependent Claim
148 words
IN A PNEUMATIC STAPLING TOOL FOR DRIVING STAPLES INTO A WORKPIECE HAVING AN AIR INLET ADAPTED TO BE CONNECTED TO A SOURCE OF AIR UNDER PRESSURE, AN AIR EXHAUST, AND A VALVE ASSEMBLY CONTROLLING THE FLOW OF AIR IN THROUGH THE AIR INLET AND OUT THROUGH THE AIR EXHAUST, THE COMBINATION INCLUDING, MEANS FORMING A CYLINDER HAVING UPPER AND LOWER SECTIONS WITH SAID UPPER SECTION HAVING A SLIGHTLY LARGER DIAMETER THAN SAID LOWER SECTION, A STAPLE DRIVING PISTON RECIPROCABLE IN SAID CYLINDER BETWEEN RETRACTED AND ADVANCED POSITIONS AND HAVING AN UPPER HEAD PORTION OF LARGER DIAMETER THAN THE REMAINDER OF SAID PISTON SLIDABLE ONLY IN SAID UPPER CYLINDER SECTION, LATERAL PORT MEANS VENTING SAID CYLINDER TO THE ATMOSPHERE BELOW SAID UPPER HEAD PORTION OF SAID PISTON WHEN SAID PISTON IS MOVED FROM RETRACTED POSITION, MEANS CARRIED IN THE WALL OF SAID LOWER CYLINDER PORTION FOR SEALING SAID PISTON
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |