US3180379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bit assembly and chip ejector means therefor
Assignee: Rule Industries LLC
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Filing: 1961-05-22
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Granted: 1965-04-27
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Expires: 1981-05-22
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:41
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/0042; B27; B27G; B27G15/00; Y; Y02; Y02P; Y02P70/00; Y02P70/10; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/892; Y10T408/899; Y10T408/902; Y10T408/904; Y10T408/9042; Y10T408/9048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A BIT ASSEMBLY COMPRISING A SHANK; A CUTTER HEAD ASSEMBLY AT AN END OF SAID SHANK, SAID CUTTER HEAD ASSEMBLY INCLUDING OPPOSITELY DIRECTED CUTTING SECTIONS EXTENDING LATERALLY BEYOND THE LONGITUDINAL BOUNDARY OF SAID SHANK AND EACH HAVING A CUTTING EDGE AND AN INCLINED LIFT SURFACE EXTENDING UPWARDLY THEREFROM; INDEPENDENT MEANS SURROUNDING SAID SHANK AND TERMINATING ADJACENT SAID CUTTER HEAD ASSEMBLY FOR GUIDING WORK CHIPS FROM SAID CUTTER HEAD ASSEMBLY UP SAID SHANK AS SUCH CHIPS ARE CREATED BY SAID CUTTING EDGES DURING USE, SAID MEANS INCLDING A SPIRAL RIDGE ABOUT SAID SHANK AND TERMINATING IN A FREE END ADJACENT SAID CUTTER HEAD ASSEMBLY; AND MEANS FOR REMOVABLY SECURING SAID SPIRAL RIDGE TO SAID SHANK.
Claim 2
Dependent Claim
114 words
A BIT ASSEMBLY COMPRISING A SHANK; A CUTTER HEAD ASSEMBLY AT AN END OF SAID SHANK, SAID CUTTER HEAD ASSEMBLY INCLUDING OPPOSITELY DIRECTED CUTTING SECTIONS EXTENDING LATERALLY BEYOND THE LONGITUDINAL BOUNDARY OF SAID SHANK AND EACH HAVING A CUTTING EDGE AND AN INCLINED LIFT SURFACE EXTENDING UPWARDLY THEREFROM; INDEPENDENT MEANS SURROUNDING SAID SHANK AND TERMINATING ADJACENT SAID CUTTER HEAD ASSEMBLY FOR GUIDING WORK CHIPS FROM SAID CUTTER HEAD ASSEMBLY UP SAID SHANK AS SUCH CHIPS ARE CREATED BY SAID CUTTING EDGES DURING USE, SAID MEANS INCLDING A SPIRAL RIDGE ABOUT SAID SHANK AND TERMINATING IN A FREE END ADJACENT SAID CUTTER HEAD ASSEMBLY; AND MEANS FOR REMOVABLY SECURING SAID SPIRAL RIDGE TO SAID SHANK.
References Cited (Backward Citations)
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US1557900A
Cited
US2566145A
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US3064699A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |