US3133767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain construction
Assignee: Erlau AG
•
Filing: 1962-07-20
•
Granted: 1964-05-19
•
Expires: 1982-07-20
Abstract
No abstract record available.
Inventors
- 👤 Wunsch Adolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:12
CPC Classifications
B; B60; B60C; B60C27/00; B60C27/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
209 words
AN ANTI-SKID CHAIN FOR A VEHICLE, PARTICULARLY FOR ONE IN WHICH TWO WHEELS ARE ARRANGED ONE BEHIND THE OTHER IN RESPECT TO A RUNNING DIRECTION AND IN WHICH THE WHEELS HAVE A FLAT GROUND-ENGAGING SURFACE AND LATERAL SURFACES EXTENDING UPWARDLY AT AN ANGLE FROM THE GROUNDENGAGING SURFACE, COMPRISING A PLURALITY OF CHAIN LINK ASSEMBLIES EACH COMPRISING A SUBSTANTIALLY FLAT GRIPPING ELEMENT ADAPTED TO EXTEND FROM SIDE TO SIDE OF THE WHEELS BENEATH THE GROUND-ENGAGING SURFACE AND TRANSVERSE TO THE RUNNING DIRECTION, A FIRST ANGULAR MEMBER PIVOTALLY CONNECTED DIRECTLY TO ONE SIDE OF SAID GRIPPING ELEMENT AND HAVING A LEG PORTION EXTENDING GENERALLY UPWARDLY FROM SAID GRIPPING ELEMENT AND ADAPTED TO OVERLIE AND ENGAGE A SIDE OF A TIRE AND A SECOND LEG PORTION EXTENDING GENERALLY HORIZONTALLY AND SUBSTANTIALLY PARALLEL TO SAID GRIPPING ELEMENT AND ADAPTED TO EXTEND BENEATH THE TIRE IN ENGAGEMENT WITH THE RUNNING SURFACE THEREOF, AND A SECOND ANGULAR MEMBER PIVOTALLY CONNECTED DIRECTLY TO THE OPPOSITE SIDE OF SAID GRIPPING MEMBER AND HAVING A FIRST LEG PORTION EXTENDING GENERALLY UPWARDLY FROM SAID GRIPPING ELEMENT AND ENGAGING THE OPPOSITE SIDE OF THE TIRE AND A SECOND LEG PORTION EXTENDING GENERALLY HORIZONTALLY AND SUBSTANTIALLY PARALLEL TO SAID GRIPPING ELEMENT AND BENEATH THE TIRE AND ENGAGING THE GROUND-ENGAGING SURFACE THEREOF.
Claim 2
Dependent Claim
209 words
AN ANTI-SKID CHAIN FOR A VEHICLE, PARTICULARLY FOR ONE IN WHICH TWO WHEELS ARE ARRANGED ONE BEHIND THE OTHER IN RESPECT TO A RUNNING DIRECTION AND IN WHICH THE WHEELS HAVE A FLAT GROUND-ENGAGING SURFACE AND LATERAL SURFACES EXTENDING UPWARDLY AT AN ANGLE FROM THE GROUNDENGAGING SURFACE, COMPRISING A PLURALITY OF CHAIN LINK ASSEMBLIES EACH COMPRISING A SUBSTANTIALLY FLAT GRIPPING ELEMENT ADAPTED TO EXTEND FROM SIDE TO SIDE OF THE WHEELS BENEATH THE GROUND-ENGAGING SURFACE AND TRANSVERSE TO THE RUNNING DIRECTION, A FIRST ANGULAR MEMBER PIVOTALLY CONNECTED DIRECTLY TO ONE SIDE OF SAID GRIPPING ELEMENT AND HAVING A LEG PORTION EXTENDING GENERALLY UPWARDLY FROM SAID GRIPPING ELEMENT AND ADAPTED TO OVERLIE AND ENGAGE A SIDE OF A TIRE AND A SECOND LEG PORTION EXTENDING GENERALLY HORIZONTALLY AND SUBSTANTIALLY PARALLEL TO SAID GRIPPING ELEMENT AND ADAPTED TO EXTEND BENEATH THE TIRE IN ENGAGEMENT WITH THE RUNNING SURFACE THEREOF, AND A SECOND ANGULAR MEMBER PIVOTALLY CONNECTED DIRECTLY TO THE OPPOSITE SIDE OF SAID GRIPPING MEMBER AND HAVING A FIRST LEG PORTION EXTENDING GENERALLY UPWARDLY FROM SAID GRIPPING ELEMENT AND ENGAGING THE OPPOSITE SIDE OF THE TIRE AND A SECOND LEG PORTION EXTENDING GENERALLY HORIZONTALLY AND SUBSTANTIALLY PARALLEL TO SAID GRIPPING ELEMENT AND BENEATH THE TIRE AND ENGAGING THE GROUND-ENGAGING SURFACE THEREOF.
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |