US3144674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Doctor blade retainer
Assignee: Individual
•
Filing: 1963-01-03
•
Granted: 1964-08-18
•
Expires: 1983-01-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Broughton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:01
CPC Classifications
D; D21; D21G; D21G3/00; D21G3/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A POSITIONING SPRING MAINTAINING IN THE BLADE RETAINING CAVITY OF A CONVENTIONAL HOLDER A DOCTOR BLADE OF THE TYPE HAVING A PLURALITY OF SPACED APERTURES THERETHROUGH; SAID SPRING HAVING A PORTION THEREOF ENGAGED WITH A SURFACE OF SAID DOCTOR BLADE AND HAVING ANOTHER PORTION ENGAGED WITH THE HOLDER TO MAINTAIN A PREDETERMINED POSITION BETWEEN THE HOLDER AND THE BLADE, ONE OF SAID ENGAGING PORTIONS BEING LATERALLY OFFSET AND SKEWED FROM THE OTHER OF SAID PORTIONS, A RETAINING PIN REMOVABLY INSERTED THROUGH ONE OF THE APERTURES IN SAID DOCTOR BLADE AND HAVING AN ENLARGED HEAD ON ONE END THEREOF AND HAVING A TRANSVERSELY DISPOSED OPENING THROUGH THE OTHER END PORTION THEREOF, SAID SPRING HAVING AN ANCHORING PORTION INSERTABLE THROUGH THE OPENING IN SAID PIN WITH MEANS FOR RELEASABLY HOLDING SAID SPRING PORTION IN SAID PIN OPENING.
Claim 2
Dependent Claim
135 words
A POSITIONING SPRING MAINTAINING IN THE BLADE RETAINING CAVITY OF A CONVENTIONAL HOLDER A DOCTOR BLADE OF THE TYPE HAVING A PLURALITY OF SPACED APERTURES THERETHROUGH; SAID SPRING HAVING A PORTION THEREOF ENGAGED WITH A SURFACE OF SAID DOCTOR BLADE AND HAVING ANOTHER PORTION ENGAGED WITH THE HOLDER TO MAINTAIN A PREDETERMINED POSITION BETWEEN THE HOLDER AND THE BLADE, ONE OF SAID ENGAGING PORTIONS BEING LATERALLY OFFSET AND SKEWED FROM THE OTHER OF SAID PORTIONS, A RETAINING PIN REMOVABLY INSERTED THROUGH ONE OF THE APERTURES IN SAID DOCTOR BLADE AND HAVING AN ENLARGED HEAD ON ONE END THEREOF AND HAVING A TRANSVERSELY DISPOSED OPENING THROUGH THE OTHER END PORTION THEREOF, SAID SPRING HAVING AN ANCHORING PORTION INSERTABLE THROUGH THE OPENING IN SAID PIN WITH MEANS FOR RELEASABLY HOLDING SAID SPRING PORTION IN SAID PIN OPENING.
References Cited (Backward Citations)
US1305470A
Cited
US2498213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |