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US3315280A
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Drain opening device
Assignee: Individual
•
Filing: 1964-12-21
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Granted: 1967-04-25
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Robert A Krenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:08
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/30; E03C1/302
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A DRAIN OPENING DEVICE COMPRISING IN COMBINATION: (A) A CYLINDER HAVING A BORE FOR RECEIVING AN AEROSOL CONTAINER, (B) A DEMOUNTABLE CAP ON ONE END OF SAID CYLINDER TO ALLOW INSERTION AND RETENTION OF SAID AEROSOL CONTAINER IN PERFORATING POSITION IN SAID CYLINDER, (C) A PIERCING TUBE, (D) A PIPE OPENING ENGAGING HEAD ON THE OUTER END OF SAID PIERCING TUBE, (E) MEANS FOR MOUNTING SAID PIERCING TUBE ON THE OTHER END OF SAID CYLINDER FOR RELATIVE AXIAL MOVEMENT OF SAID TUBE AND CYLINDER, (F) AND A PIERCING POINT ON THE INNER END OF SAID PIERCING TUBE ARRANGED TO ENGAGE AND PIERCE AN END OF SAID AEROSOL CONTAINER IN SAID CYLINDER WHEN SAID CYLINDER IS MOVED TOWARD SAID PIPE OPENING ENGAGING HEAD OF SAID PIERCING TUBE.
Claim 2
Dependent Claim
126 words
A DRAIN OPENING DEVICE COMPRISING IN COMBINATION: (A) A CYLINDER HAVING A BORE FOR RECEIVING AN AEROSOL CONTAINER, (B) A DEMOUNTABLE CAP ON ONE END OF SAID CYLINDER TO ALLOW INSERTION AND RETENTION OF SAID AEROSOL CONTAINER IN PERFORATING POSITION IN SAID CYLINDER, (C) A PIERCING TUBE, (D) A PIPE OPENING ENGAGING HEAD ON THE OUTER END OF SAID PIERCING TUBE, (E) MEANS FOR MOUNTING SAID PIERCING TUBE ON THE OTHER END OF SAID CYLINDER FOR RELATIVE AXIAL MOVEMENT OF SAID TUBE AND CYLINDER, (F) AND A PIERCING POINT ON THE INNER END OF SAID PIERCING TUBE ARRANGED TO ENGAGE AND PIERCE AN END OF SAID AEROSOL CONTAINER IN SAID CYLINDER WHEN SAID CYLINDER IS MOVED TOWARD SAID PIPE OPENING ENGAGING HEAD OF SAID PIERCING TUBE.
References Cited (Backward Citations)
US2999264A
Cited
US3138803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |