US3216042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wiper blades for thin layer evaporators
Assignee: Bayer AG
•
Filing: 1963-10-01
•
Granted: 1965-11-09
•
Expires: 1983-10-01
Abstract
No abstract record available.
Inventors
- 👤 Strittmatter Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:49
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/22; B01D1/222; B01D1/223; B01D1/225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A WIPER BLADE PIVOTALLY MOUNTED TO A ROTATABLE SUPPORT MEMBER FOR WIPING THE INTERIOR SURFACE OF AN EVAPORATOR CYLINDER, WHICH COMPRISES: (A) A SPINDLE JOURNALED IN SAID SUPPORT MEMBER, AND, (B) A BLADE FIXEDLY SECURED TO SAID SPINDLE, SAID BLADE HAVING A STRAIGHT OUTER EDGE AND A BENT FLAP ON AT LEAST ONE END, SAID BLADE BEING SECURED TO THE SPINDLE SO THAT ITS OUTER EDGE IS SWUNG INTO CONTIGUOUS WIPING CONTACT WITH THE CYLINDER SURFACE BY CENTRIFUGAL FORCE AS THE SUPPORT MEMBER IS ROTATED, SAID FLAP BEING BENT AWAY AT AN ANGLE FROM THE BLADE SURFACE TO FORM A STOP WHICH BEARS AGAINST SAID ROTATING SUPPORT WHEN THE OUTER EDGE OF THE BLADE IS IN WIPING CONTACT WITH THE CYLINDER SURFACE THEREBY PREVENTING SAID BLADE EDGE FROM BEING SWUNG FURTHER INTO ABRASIVE CONTACT WITH SAID CYLINDER SURFACE.
Claim 2
Dependent Claim
138 words
A WIPER BLADE PIVOTALLY MOUNTED TO A ROTATABLE SUPPORT MEMBER FOR WIPING THE INTERIOR SURFACE OF AN EVAPORATOR CYLINDER, WHICH COMPRISES: (A) A SPINDLE JOURNALED IN SAID SUPPORT MEMBER, AND, (B) A BLADE FIXEDLY SECURED TO SAID SPINDLE, SAID BLADE HAVING A STRAIGHT OUTER EDGE AND A BENT FLAP ON AT LEAST ONE END, SAID BLADE BEING SECURED TO THE SPINDLE SO THAT ITS OUTER EDGE IS SWUNG INTO CONTIGUOUS WIPING CONTACT WITH THE CYLINDER SURFACE BY CENTRIFUGAL FORCE AS THE SUPPORT MEMBER IS ROTATED, SAID FLAP BEING BENT AWAY AT AN ANGLE FROM THE BLADE SURFACE TO FORM A STOP WHICH BEARS AGAINST SAID ROTATING SUPPORT WHEN THE OUTER EDGE OF THE BLADE IS IN WIPING CONTACT WITH THE CYLINDER SURFACE THEREBY PREVENTING SAID BLADE EDGE FROM BEING SWUNG FURTHER INTO ABRASIVE CONTACT WITH SAID CYLINDER SURFACE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |