Patent US3148003A successfully refreshed from Google Patents.
US3148003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slideway protection system in machine tools and the like
Assignee: DITE DEREFA POUR LE DEVELOPPEMENT RECHERCHES ET FABRICATIONS INDUSTRIELLES Ets Ste
•
Filing: 1961-05-16
•
Granted: 1964-09-08
•
Expires: 1981-05-16
Abstract
No abstract record available.
Inventors
- 👤 Deflandre Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:55
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/08; B23Q11/0825; B23Q11/0042; B23Q11/005; F; F16; F16C; F16C29/00; F16C29/08; F16C2322/00; F16C2322/39; Y; Y02; Y02P; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A MACHINE TOOL HAVING A FIRST COMPONENT WITH SLIDEWAY MEANS FORMED ON A SURFACE THEREOF AND A SECOND COMPONENT WITH COMPLEMENTARY SLIDEWAY MEANS FORMED ON A SURFACE THEREOF FOR SLIDING DISPLACEMENT OF THE SECOND RELATIVELY TO THE FIRST COMPONENT, THE PROVISION OF EXTENSIBLE AND RETRACTIBLE COVER MEANS ATTACHED TO SAID COMPONENTS SO AS TO DEFINE AN IMPERFECTLY SEALED ENCLOSURE ADJACENT SAID SURFACES ON EACH SIDE OF SAID SECOND COMPONENT, DUCT MEANS FORMED IN ONE OF SAID COMPONENTS AND OPENING INTO EACH OF SAID ENCLOSURES, AND AIR BLOWER MEANS CONNECTED WITH SAID DUCT MEANS FOR MAINTAINING SUPERATMOSPHERIC PRESSURE IN EACH OF SAID ENCLOSURES.
Claim 2
Dependent Claim
103 words
IN A MACHINE TOOL HAVING A FIRST COMPONENT WITH SLIDEWAY MEANS FORMED ON A SURFACE THEREOF AND A SECOND COMPONENT WITH COMPLEMENTARY SLIDEWAY MEANS FORMED ON A SURFACE THEREOF FOR SLIDING DISPLACEMENT OF THE SECOND RELATIVELY TO THE FIRST COMPONENT, THE PROVISION OF EXTENSIBLE AND RETRACTIBLE COVER MEANS ATTACHED TO SAID COMPONENTS SO AS TO DEFINE AN IMPERFECTLY SEALED ENCLOSURE ADJACENT SAID SURFACES ON EACH SIDE OF SAID SECOND COMPONENT, DUCT MEANS FORMED IN ONE OF SAID COMPONENTS AND OPENING INTO EACH OF SAID ENCLOSURES, AND AIR BLOWER MEANS CONNECTED WITH SAID DUCT MEANS FOR MAINTAINING SUPERATMOSPHERIC PRESSURE IN EACH OF SAID ENCLOSURES.
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |