Patent US4540377A successfully refreshed from Google Patents.
US4540377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toy vehicle conversion accessory
Assignee: Glass Marvin and Associates
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Filing: 1984-02-01
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Granted: 1985-09-10
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Expires: 2004-02-01
Abstract
Abstract A 4×4 conversion accessory for vehicles including a pair of spaced apart axles secured to an elongated transverse central frame member. Relatively large lugged wheels are attached to the ends of each axle for rotation with respect to the frame member. Mounting wells for releasably receiving the wheels of the vehicle are carried by the axles adjacent each lugged wheel to support the vehicle on the conversion accessory. Each well has a substantially solid outer circular wall and a spaced apart inner circular wall with a generally vertical slot extending down below the center of the inner wall. A telescoping frame member and mounting wells carried for sliding movement along the transverse axles accommodate vehicles having different wheel bases. In another version, the elongated frame member includes a compressible spring and releasable actuator for propelling a combined vehicle and 4×4 converter accessory.
Inventors
- 👤 Steven F. Rehkemper
- 👤 Steven P. Hanson
- 👤 Harry Disko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:58
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/262
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
A toy vehicle conversion accessory for a toy vehicle having relatively small wheels comprising: an elongated frame member having opposed ends; a pair of spaced apart transverse axles secured to the elongated central frame member adjacent each end; a pair of relatively large wheels mounted for rotation on each of the axles; and mounting wells carried on the axle adjacent each of the relatively large wheels for releasably receiving and masking the relatively small wheels of the toy vehicle to combine the toy vehicle with the accessory for movement therewith along a playing surface.
Claim 2
Dependent Claim
94 words
A toy vehicle conversion accessory for a toy vehicle having relatively small wheels comprising: an elongated frame member having opposed ends; a pair of spaced apart transverse axles secured to the elongated central frame member adjacent each end; a pair of relatively large wheels mounted for rotation on each of the axles; and mounting wells carried on the axle adjacent each of the relatively large wheels for releasably receiving and masking the relatively small wheels of the toy vehicle to combine the toy vehicle with the accessory for movement therewith along a playing surface.
Claim 3
Dependent Claim
55 words
The toy vehicle conversion accessory of claim 1 in which: each of the mounting wells has an outer wall and a spaced apart inner wall; and the spaced apart inner wall has a slot generally centrally vertically disposed and extending from the top of the inner wall down below the center of the inner wall.
Claim 4
Dependent Claim
18 words
The toy vehicle accessory of claim 2 in which the outer wall is a substantially solid circular piece.
Claim 5
Dependent Claim
22 words
The toy vehicle accessory of claim 1 in which the wheel mounting wells are carried for sliding movement along the transverse axles.
Claim 6
Dependent Claim
20 words
The toy vehicle conversion accessory of claim 1 in which the elongated central frame member is two relatively telescoping parts.
Claim 7
Dependent Claim
21 words
The toy vehicle conversion accessory of claim 5 in which one of the telescoping parts is captured by the other part.
Claim 8
Dependent Claim
150 words
A toy vehicle conversion accessory for a toy vehicle having relatively small wheels comprising: an elongated frame member having opposed ends; a pair of spaced apart transverse axles secured to the elongated central frame member adjacent each end; a pair of relatively large wheels mounted for rotation on each of the axles; mounting wells carried on the axle adjacent each of the relatively large wheels for releasably receiving the relatively small wheels of the toy vehicle to combine the toy vehicle with the accessory for movement therewith along a playing surface; the elongated central frame member being hollow and having an opening at one end; a compressible biasing means for propelling the combined toy vehicle and the accessory contained within the elongated frame member; and an actuator for compressing and releasing the biasing means insertable into the hollow member with a trigger portion of the actuator protruding from the opening.
Claim 9
Dependent Claim
150 words
A toy vehicle conversion accessory for a toy vehicle having relatively small wheels comprising: an elongated frame member having opposed ends; a pair of spaced apart transverse axles secured to the elongated central frame member adjacent each end; a pair of relatively large wheels mounted for rotation on each of the axles; mounting wells carried on the axle adjacent each of the relatively large wheels for releasably receiving the relatively small wheels of the toy vehicle to combine the toy vehicle with the accessory for movement therewith along a playing surface; the elongated central frame member being hollow and having an opening at one end; a compressible biasing means for propelling the combined toy vehicle and the accessory contained within the elongated frame member; and an actuator for compressing and releasing the biasing means insertable into the hollow member with a trigger portion of the actuator protruding from the opening.
Claim 10
Dependent Claim
21 words
The toy vehicle conversion acessory of claim 7 in which the protruding trigger comprises a pair of spaced apart compressible leaves.
Claim 11
Dependent Claim
25 words
The toy vehicle conversion accessory of claim 8 in which one of the leaves has a projecting catch that engages an edge forming the opening.
Claim 12
Dependent Claim
37 words
The toy vehicle conversion accessory of claim 3 in which: the inner wall is generally circular; and the lower semicircular portions of the outer wall and the inner wall are joined together by a cylindrical peripheral wall.
References Cited (Backward Citations)
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US3913934A
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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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |