Patent US3104432A successfully refreshed from Google Patents.
US3104432A
Expired / Lapsed
US
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Blow tube and method of making same
Assignee: Individual
•
Filing: 1960-09-21
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Granted: 1963-09-24
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Expires: 1980-09-21
Abstract
No abstract record available.
Inventors
- 👤 Edwin F Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:13
CPC Classifications
B; B22; B22C; B22C15/00; B22C15/23; B22C15/24; B22C15/245; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49432; Y10T29/49433; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A BLOW TUBE COMPRISING A RIGID TUBULAR CASING HAVING A SUBSTANTIALLY UNIFORM INTERNAL DIAMETER FROM ONE END TO AN INTERMEDIATE PORTION THEREOF, AND CONVERGING SMOOTHLY FROM SAID INTERMEDIATE PORTION TO THE OTHER END THEREOF TO PROVIDE A REDUCED TERMINAL PORTION, AND A TUBULAR RESILIENT SLEEVE UNDER COMPRESSION HAVING A SUBSTANTIALLY UNIFORM WALL THICKNESS, SAID SLEEVE HAVING AN OUTER DIAMETER INITIALLY GREATER THAN THE INTERNAL DIAMETER OF SAID CASING AND LINING SAID CASING THROUGHOUT ITS LENGTH TO DEFINE A RESILIENT DISCHARGE CHOKE ADJACENT SAID TERMINAL PORTION.
Claim 2
Dependent Claim
85 words
A BLOW TUBE COMPRISING A RIGID TUBULAR CASING HAVING A SUBSTANTIALLY UNIFORM INTERNAL DIAMETER FROM ONE END TO AN INTERMEDIATE PORTION THEREOF, AND CONVERGING SMOOTHLY FROM SAID INTERMEDIATE PORTION TO THE OTHER END THEREOF TO PROVIDE A REDUCED TERMINAL PORTION, AND A TUBULAR RESILIENT SLEEVE UNDER COMPRESSION HAVING A SUBSTANTIALLY UNIFORM WALL THICKNESS, SAID SLEEVE HAVING AN OUTER DIAMETER INITIALLY GREATER THAN THE INTERNAL DIAMETER OF SAID CASING AND LINING SAID CASING THROUGHOUT ITS LENGTH TO DEFINE A RESILIENT DISCHARGE CHOKE ADJACENT SAID TERMINAL PORTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |