Patent US3305271A successfully refreshed from Google Patents.
US3305271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mining machine having cutting head with rotated and orbited cutters
Assignee: GALIS Manufacturing CO
•
Filing: 1963-07-16
•
Granted: 1967-02-21
•
Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Alex J Galis
- 👤 Stephen A Muldoven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:48
CPC Classifications
E; E21; E21C; E21C27/00; E21C27/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
106 words
A DISINTEGRATING HEAD FOR A MINING MACHINE COMPRISING, AN ELONGATED CUTTER SHAFT SUPPORT MEMBER HAVING A LONGITUDINAL AXIS, A PLURALITY OF CUTTER SHAFTS CARRIED BY SAID SUPPORT MEMBER IN PARALLEL SPACED RELATION THERETO, SAID CUTTER SHAFTS EACH HAVING A LONGITUDINAL AXIS AXIALLY SPACED FROM SAID SUPPORT MEMBER LONGITUDINAL AXIS, MEANS TO SUPPORT SAID CUTTER SHAFT SUPPORT MEMBER IN A SUBSTANTIALLY HORIZONTAL POSITION, DRIVE MEANS TO REVOLVE SAID CUTTER SHAFT SUPPORT MEMBER ABOUT SAID CUTTER SHAFT SUPPORT MEMBER LONGITUDINAL AXIS AND THEREBY ORBIT SAID CUTTER SHAFTS ABOUT SAID CUTTER SHAFT SUPPORT MEMBER LONGITUDINAL AXIS AND ALSO ROTATE SAID CUTTER SHAFTS ABOUT SAID RESPECTIVE CUTTER SHAFT LONGITUDINAL AXIS,
References Cited (Backward Citations)
US1084871A
Cited
US1962334A
Cited
US2886288A
Cited
US2920879A
Cited
US2986385A
Cited
US3219390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |