US3358569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheep foot tamper
Assignee: Individual
•
Filing: 1965-07-30
•
Granted: 1967-12-19
•
Expires: 1985-07-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Averette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:44
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/026; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32893; Y10T403/32901; Y10T403/32918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A SHEEP FOOT TAMPER COMPRISING: A METAL SHANK HAVING A TRANSVERSE BORE FORMED THEREIN; THE OPPOSITE ENDS OF SUCH SHANK BORE BEING COUNTERBORED; A TAMPER ELEMENT HAVING A SKIRT ADAPTED TO BE DISPOSED OVER SAID SHANK; SAID SKIRT HAVING A TRANSVERSE BORE CO-AXIAL WITH SAID SHANK BORE WHEN SAID SKIRT IS DISPOSED ON SAID SHANK AND BEING FORMED WITH COUNTER-BORES OPPOSITE SAID SHANK BORE COUNTER BORES; AN EXPANDABLE SPLIT SPRING WASHER CAPTURED IN EACH OF SAID COUNTER-BORES AND BEING CO-AXIAL WITH SAID TRANSVERSE BORES; AND A TAPERED PIN INSERTABLE WITH SAID CO-AXIAL TRANSVERSE BORES AND BEING ADAPTED TO EXPAND SAID WASHERS IN A TENSION GRIPPING RELATIONSHIP THEREWITH TO RETAIN SAID TAMPER ELEMENT ON SAID SHANK.
Claim 2
Dependent Claim
115 words
A SHEEP FOOT TAMPER COMPRISING: A METAL SHANK HAVING A TRANSVERSE BORE FORMED THEREIN; THE OPPOSITE ENDS OF SUCH SHANK BORE BEING COUNTERBORED; A TAMPER ELEMENT HAVING A SKIRT ADAPTED TO BE DISPOSED OVER SAID SHANK; SAID SKIRT HAVING A TRANSVERSE BORE CO-AXIAL WITH SAID SHANK BORE WHEN SAID SKIRT IS DISPOSED ON SAID SHANK AND BEING FORMED WITH COUNTER-BORES OPPOSITE SAID SHANK BORE COUNTER BORES; AN EXPANDABLE SPLIT SPRING WASHER CAPTURED IN EACH OF SAID COUNTER-BORES AND BEING CO-AXIAL WITH SAID TRANSVERSE BORES; AND A TAPERED PIN INSERTABLE WITH SAID CO-AXIAL TRANSVERSE BORES AND BEING ADAPTED TO EXPAND SAID WASHERS IN A TENSION GRIPPING RELATIONSHIP THEREWITH TO RETAIN SAID TAMPER ELEMENT ON SAID SHANK.
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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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |