Patent US4120510A successfully refreshed from Google Patents.
US4120510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheeled skateboards
Assignee: Individual
•
Filing: 1977-03-30
•
Granted: 1978-10-17
•
Expires: 1997-03-30
Abstract
Abstract Wheeled skateboards which feature novel wheel turn movements, by preventing turning of the wheels until the skateboard platform has been tilted through a certain angle. The invention may be applied to either standing or sitting skateboards, and certain embodiments provide shock absorbing properties to the wheeled trucks, independent adjustment of the front and rear trucks on a skateboard, and adjustment of the wheel axle position on each truck.
Inventors
- 👤 Thomas Gerald Hillard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:38
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/01; A63C17/011; A63C17/012; A63C17/014; A63C17/015; A63C2203/00; A63C2203/40
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
96 words
Apparatus, which comprises: a first substantially planar support member adapted to support a rider on the upper surface thereof; a second substantially planar support member positioned underneath said first support member; wheeled truck means connected to the underside of said second support member for turning to the left or right in response to the tilting of said second support member respectively to the left or right about its longitudinal axis; and means operatively connecting said first and second support members for preventing said truck from turning until said first support member is tilted a predetermined amount.
Claim 2
Dependent Claim
96 words
Apparatus, which comprises: a first substantially planar support member adapted to support a rider on the upper surface thereof; a second substantially planar support member positioned underneath said first support member; wheeled truck means connected to the underside of said second support member for turning to the left or right in response to the tilting of said second support member respectively to the left or right about its longitudinal axis; and means operatively connecting said first and second support members for preventing said truck from turning until said first support member is tilted a predetermined amount.
Claim 3
Dependent Claim
31 words
The apparatus as set forth in claim 1, wherein said means operatively connecting said first and second support members comprises a hinge having a pivot pin aligned with said longitudinal axis.
Claim 4
Dependent Claim
42 words
The apparatus as set forth in claim 2, wherein said hinge includes an upper plate mounted to said first support member and a lower plate mounted to said second support member, said upper and lower plates being connected by said pivot pin.
Claim 5
Dependent Claim
48 words
The apparatus as set forth in claim 1, wherein said means operatively connecting said first and second support members comprises means for pivotally connecting said first support member to said second support member about an axis parallel to the longitudinal centerlines of said first and second support members.
Claim 6
Dependent Claim
25 words
The apparatus as set forth in claim 4, wherein said means for pivotally connecting said first and second support members comprises at least one hinge.
Claim 7
Dependent Claim
52 words
The apparatus as set forth in claim 1, wherein said means operatively connecting said first and second support members comprises means for spacing said first and second support members and for permitting said first support member to tilt about its longitudinal axis a predetermined amount before it contacts said second support member.
Claim 8
Dependent Claim
15 words
The apparatus as set forth in claim 6, wherein said spacing means comprises a hinge.
Claim 9
Dependent Claim
25 words
The apparatus as set forth in claim 7, wherein said hinge includes a pivot pin extending parallel to the center line of said support members.
References Cited (Backward Citations)
US329845A
Cited
US341999A
Cited
US1885158A
Cited
US2097721A
Cited
AU276137A
Cited
US2474946A
Cited
US3039784A
Cited
US3729207A
Cited
US3856321A
Cited
US3891225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-16 | 1982-04-17 | 1982-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-16 | 1986-04-17 | 1986-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-16 | 1990-04-17 | 1990-10-17 | $7700.00 | Window Closed / Lapsed |