US4615686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slot car chassis
Assignee: PARMA INTERNATIONAL Inc
•
Filing: 1985-07-03
•
Granted: 1986-10-07
•
Expires: 2005-07-03
Abstract
Abstract Miniature, remote-controlled, electrically-driven slot cars and, more particularly, a novel dual-chassis assembly therefor.
Inventors
- 👤 Stephen P. Bartos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:43
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/262
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
130 words
A slot car for use on a track having a guide slot comprising (a) a first bottom chassis; (b) front and rear axles mounted on said bottom chassis, each of said axles including a pair of rotatable wheels; (c) an upper body mount plate in superimposed relationship to said bottom chassis including hinging means adjacent the front axle hinging the body mount plate to the bottom chassis; (d) electric motor drive means mounted on said bottom chassis and operatively engaging said rear axle; (e) said bottom chassis including connecting means at a point rearward of the front axle engaging the body mount plate for connecting said bottom chassis to said body mount plate while permitting limited sideways and vertical movement of the bottom chassis relative to the body mount plate.
Claim 2
Dependent Claim
130 words
A slot car for use on a track having a guide slot comprising (a) a first bottom chassis; (b) front and rear axles mounted on said bottom chassis, each of said axles including a pair of rotatable wheels; (c) an upper body mount plate in superimposed relationship to said bottom chassis including hinging means adjacent the front axle hinging the body mount plate to the bottom chassis; (d) electric motor drive means mounted on said bottom chassis and operatively engaging said rear axle; (e) said bottom chassis including connecting means at a point rearward of the front axle engaging the body mount plate for connecting said bottom chassis to said body mount plate while permitting limited sideways and vertical movement of the bottom chassis relative to the body mount plate.
Claim 3
Dependent Claim
17 words
The slot car of claim 1 wherein said hinging means comprises flange portions engaging said front axle.
Claim 4
Dependent Claim
30 words
The slot car of claims 1 or 2 wherein said connecting means comprises tab means on either the bottom chassis or body mount plate engaging aperture means in the other.
Claim 5
Dependent Claim
35 words
The slot car of claim 3 wherein said tab means and aperture means are located along the longitudinal axis of the car, said hinging means being at two locations on opposite sides of said axis.
Claim 6
Dependent Claim
22 words
The slot car of claim 2 wherein said flange portions have oversized openings allowing play between the axle and body mount plate.
Claim 7
Dependent Claim
22 words
The slot car of claims 1 or 2 wherein said bottom chassis and upper body mount plate are stamped sheet metal parts.
Claim 8
Dependent Claim
153 words
A slot car for use on a track having a guide slot comprising (a) a first bottom chassis; (b) front and rear axles; (c) front and rear side flange means on said bottom chassis; (d) an upper body mount plate is superimposed relationship to said bottom chassis including flange means for hinging said body mount plate on said front axle, said body mount plate flange means being spaced relative to the bottom chassis side flange means to permit limited sideways and vertical movement of the front of the bottom chassis relative to the front of the body mount plate; and (e) said bottom chassis including connecting means at a point rearward of the front axle engaging the body mount plate for connecting said bottom chassis to said body mount plate while permitting limited sideways and vertical movement of the rear of the bottom chassis relative to the rear of the body mount plate.
Claim 9
Dependent Claim
153 words
A slot car for use on a track having a guide slot comprising (a) a first bottom chassis; (b) front and rear axles; (c) front and rear side flange means on said bottom chassis; (d) an upper body mount plate is superimposed relationship to said bottom chassis including flange means for hinging said body mount plate on said front axle, said body mount plate flange means being spaced relative to the bottom chassis side flange means to permit limited sideways and vertical movement of the front of the bottom chassis relative to the front of the body mount plate; and (e) said bottom chassis including connecting means at a point rearward of the front axle engaging the body mount plate for connecting said bottom chassis to said body mount plate while permitting limited sideways and vertical movement of the rear of the bottom chassis relative to the rear of the body mount plate.
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) | 1989-10-06 | 1990-04-07 | 1990-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-06 | 1994-04-07 | 1994-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-06 | 1998-04-07 | 1998-10-07 | $7700.00 | Window Closed / Lapsed |