US3224032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caster
Assignee: Individual
•
Filing: 1964-06-25
•
Granted: 1965-12-21
•
Expires: 1984-06-25
Abstract
No abstract record available.
Inventors
- 👤 Wellington P Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:43
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
A UNIVERSAL BALL BEARING CASTER COMPRISING: A RING HAVING MEANS TO SECURE IT TO THE DEVICE TO BE SUPPORTED, THE RING HAVING A CYLINDRICAL INTERIOR SURFACE; A SPHERE SLIDABLE AXIALLY OF THE RING AND SUBSTANTIALLY FILLING IT; A PLURALITY OF SPACED APART APERTURES BEING PROVIDED IN SAID RING AND ARRANGED IN A PLANE PERPENDICULAR TO THE AXIS OF SAID CYLINDRICAL SURFACE; BALL BEARING SEATED IN SAID APERTURES AND EXTENDING INWARDLY FROM THE APERTURES INTO CONTACT WITH SAID SPHERE AND LIMITING UPWARD MOVEMENT OF THE SPHERE WITHIN THE RING AND SUPPORTING THE RING ON SAID SPHERE; A SECOND GROUP OF SPACED APART APERTURES BEING PROVIDED IN SAID RING AND ARRANGED IN A PLANE PARALLEL TO THE PLANE OF SAID FIRST APERTURES BUT SPACED BELOW SAID FIRST APERTURES; BALL BEARINGS SEATED IN THE APERTURES OF SAID SECOND GROUP AND EXTENDING INWARDLY FROM SUCH APERTURES AND LIMITING DOWNWARD MOVEMENT OF THE SPHERE WITHIN THE RING; EACH OF THE APERTURES HAVING A PLUG THEREIN AGAINST WHICH THE BEARING RESTS; AND MEANS CARRIED BY THE RING ENGAGING EACH PLUG TO HOLD IT AGAINST OUTWARD MOVEMENT RADIALLY OF THE RING.
Claim 2
Dependent Claim
184 words
A UNIVERSAL BALL BEARING CASTER COMPRISING: A RING HAVING MEANS TO SECURE IT TO THE DEVICE TO BE SUPPORTED, THE RING HAVING A CYLINDRICAL INTERIOR SURFACE; A SPHERE SLIDABLE AXIALLY OF THE RING AND SUBSTANTIALLY FILLING IT; A PLURALITY OF SPACED APART APERTURES BEING PROVIDED IN SAID RING AND ARRANGED IN A PLANE PERPENDICULAR TO THE AXIS OF SAID CYLINDRICAL SURFACE; BALL BEARING SEATED IN SAID APERTURES AND EXTENDING INWARDLY FROM THE APERTURES INTO CONTACT WITH SAID SPHERE AND LIMITING UPWARD MOVEMENT OF THE SPHERE WITHIN THE RING AND SUPPORTING THE RING ON SAID SPHERE; A SECOND GROUP OF SPACED APART APERTURES BEING PROVIDED IN SAID RING AND ARRANGED IN A PLANE PARALLEL TO THE PLANE OF SAID FIRST APERTURES BUT SPACED BELOW SAID FIRST APERTURES; BALL BEARINGS SEATED IN THE APERTURES OF SAID SECOND GROUP AND EXTENDING INWARDLY FROM SUCH APERTURES AND LIMITING DOWNWARD MOVEMENT OF THE SPHERE WITHIN THE RING; EACH OF THE APERTURES HAVING A PLUG THEREIN AGAINST WHICH THE BEARING RESTS; AND MEANS CARRIED BY THE RING ENGAGING EACH PLUG TO HOLD IT AGAINST OUTWARD MOVEMENT RADIALLY OF THE RING.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |