US3231320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic lubrication
Assignee: Thompson Grinder Co
•
Filing: 1962-12-28
•
Granted: 1966-01-25
•
Expires: 1982-12-28
Abstract
No abstract record available.
Inventors
- 👤 Krafft Frederick Gustave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:48
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/38; F16C29/00; F16C29/02; F16C29/025; F16C2322/00; F16C2322/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN COMBINATION; A SUPPORT MEMBER, A MOVABLE MEMBER MOVABLY RESTING ON THE SUPPORT MEMBER, INTERENGAGING PARALLEL WAY SURFACES ON SAID MEMBERS PROVIDING SLIDABLE SUPPORT FOR SAID MOVABLE MEMBER, ONE OF EACH OF SAID RESPECTIVE INTERENGAGING WAY SURFACES BEING INTERRUPTED TO FORM AT LEAST TWO DISCRETE WAY SURFACE PORTIONS SPACED ALONG THE RESPECTIVE MEMBER, GROOVE MEANS IN EACH SAID PORTION EXTENDING IN A CLOSED PATH ALONG A LINE SPACED INWARDLY FROM THE OUTER EDGE OF THE RESPECTIVE SAID PORTION, THE REGION INSIDE SAID GROOVE MEANS BEING COPLANAR WITH THE RESPECTIVE WAY PORTION, SAID GROOVE MEANS IN AREA COMPRISING ONLY A SMALL FRACTION OF THE TOTAL AREA OF THE RESPECTIVE WAY PORTION, AND A RESPECTIVE CONSTANT DELIVERY SOURCE OF HYDRAULIC FLUID CONNECTED TO EACH SAID GROOVE TO MAINTAIN A CONSTANT THICKNESS FILM OF THE SAID HYDRAULIC FLUID BETWEEN THE PERTAINING WAY SURFACE PORTION AND THE WAY SURFACE ON THE OTHER MEMBER WHICH IT ENGAGES.
Claim 2
Dependent Claim
152 words
IN COMBINATION; A SUPPORT MEMBER, A MOVABLE MEMBER MOVABLY RESTING ON THE SUPPORT MEMBER, INTERENGAGING PARALLEL WAY SURFACES ON SAID MEMBERS PROVIDING SLIDABLE SUPPORT FOR SAID MOVABLE MEMBER, ONE OF EACH OF SAID RESPECTIVE INTERENGAGING WAY SURFACES BEING INTERRUPTED TO FORM AT LEAST TWO DISCRETE WAY SURFACE PORTIONS SPACED ALONG THE RESPECTIVE MEMBER, GROOVE MEANS IN EACH SAID PORTION EXTENDING IN A CLOSED PATH ALONG A LINE SPACED INWARDLY FROM THE OUTER EDGE OF THE RESPECTIVE SAID PORTION, THE REGION INSIDE SAID GROOVE MEANS BEING COPLANAR WITH THE RESPECTIVE WAY PORTION, SAID GROOVE MEANS IN AREA COMPRISING ONLY A SMALL FRACTION OF THE TOTAL AREA OF THE RESPECTIVE WAY PORTION, AND A RESPECTIVE CONSTANT DELIVERY SOURCE OF HYDRAULIC FLUID CONNECTED TO EACH SAID GROOVE TO MAINTAIN A CONSTANT THICKNESS FILM OF THE SAID HYDRAULIC FLUID BETWEEN THE PERTAINING WAY SURFACE PORTION AND THE WAY SURFACE ON THE OTHER MEMBER WHICH IT ENGAGES.
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |