US2829983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube piercing machine
Assignee: Koppy Tool and Die Co
•
Filing: 1956-03-30
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Granted: 1958-04-08
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Expires: 1976-03-30
Abstract
No abstract record available.
Inventors
- 👤 Gain William J De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:19
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/28; B26; B26F; B26F1/00; B26F1/0015; Y; Y10; Y10T; Y10T83/00; Y10T83/384; Y10T83/387; Y10T83/395
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A TUBE PIERCING MACHINE, AN UPRIGHT MOUNTING PLATE, A MANDRIL PROJECTING LOOSELY THROUGH SAID PLATE NORMALLY THEREOF ADAPTED TO LOOSELY RECEIVE THE TUBE TO BE PUNCHED, MEANS SUPPORTING SAID MANDRIL REARWARDLY OF THE PLATE, UPPER AND LOWER TUBE COMPRESSION BLOCKS SLIDABLY MOUNTED ON SAID PLATE ON OPPOSITE SIDES OF THE MANDRIL, THEIR IONNER OPPOSING SURFACES BEING SEMI-CYLINDRICALLY SLOTTED TO COOPERATIVELY AND COMPRESSIVELY ENGAGE SAID TUBE AGAINST OPPOSING SURFACES OF THE MANDRIL, A CYLINDER RAM SPACED FROM SAID BLOCKS, TIE RODS EXTENDING SLIDABLY THROUGH THE UPPER COMPRESSION BLOCK AND SECURED AT THEIR RESPECTIVE OPPOSITE ENDS TO SAID RAM AND THE LOWER COMPRESSION BLOCK, A CYLINDER MOUNTED ON SAID RAM INCLUDING A RECIPROCAL PISTON ROD EXTENDING THROUGH THE RAM, A PUNCH RAM SLIDABLY MOUNTED ON SAID PLATE AND TIE RODS AND JOINED TO SAID PISTON ROD, A PUNCH DEPENDING FROM SAID LATTER RAM, ALIGNED WITH THE MANDRIL AXIS AND ADAPTED FOR OPERATIVE SHEARING REGISTRY WITH A
Claim 2
Dependent Claim
155 words
IN A TUBE PIERCING MACHINE, AN UPRIGHT MOUNTING PLATE, A MANDRIL PROJECTING LOOSELY THROUGH SAID PLATE NORMALLY THEREOF ADAPTED TO LOOSELY RECEIVE THE TUBE TO BE PUNCHED, MEANS SUPPORTING SAID MANDRIL REARWARDLY OF THE PLATE, UPPER AND LOWER TUBE COMPRESSION BLOCKS SLIDABLY MOUNTED ON SAID PLATE ON OPPOSITE SIDES OF THE MANDRIL, THEIR IONNER OPPOSING SURFACES BEING SEMI-CYLINDRICALLY SLOTTED TO COOPERATIVELY AND COMPRESSIVELY ENGAGE SAID TUBE AGAINST OPPOSING SURFACES OF THE MANDRIL, A CYLINDER RAM SPACED FROM SAID BLOCKS, TIE RODS EXTENDING SLIDABLY THROUGH THE UPPER COMPRESSION BLOCK AND SECURED AT THEIR RESPECTIVE OPPOSITE ENDS TO SAID RAM AND THE LOWER COMPRESSION BLOCK, A CYLINDER MOUNTED ON SAID RAM INCLUDING A RECIPROCAL PISTON ROD EXTENDING THROUGH THE RAM, A PUNCH RAM SLIDABLY MOUNTED ON SAID PLATE AND TIE RODS AND JOINED TO SAID PISTON ROD, A PUNCH DEPENDING FROM SAID LATTER RAM, ALIGNED WITH THE MANDRIL AXIS AND ADAPTED FOR OPERATIVE SHEARING REGISTRY WITH A
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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) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |