US4282641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of converting motor car
Assignee: GRANDEUR MOTORCAR CORP
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Filing: 1979-04-02
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Granted: 1981-08-11
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Expires: 1999-04-02
Abstract
Abstract A conventional four-door car with its body bolted to the frame is converted to a car with a lengthened engine compartment and a body which is correspondingly shortened immediately behind the door posts, and with the original frame intact and unchanged. Longitudinal sections of the roof and floor behind the door posts are removed to divide the car body into front and rear sections, and the steering shaft is disconnected from the steering gear. The front section of the car body is unbolted from the frame and then is displaced rearwardly along the frame to bring the severed edges of the roof together, after which the front and rear sections of the car body are welded back together at the roof and floor. An extension shaft is inserted between the steering shaft and the steering gear. A longer engine compartment hood and front fenders are attached.
Inventors
- 👤 Charles W. Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:48
CPC Classifications
B; B62; B62D; B62D47/00; B62D47/003; B62D65/00; B62D65/02; B62D65/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49716; Y10T29/49789; Y10T29/49796
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
265 words
A method of converting a passenger car, which has a four-door body bolted to the frame, to provide a shortened body at the back and a lengthened engine compartment at the front without structurally modifying the frame, which method comprises the steps of: removing, by cutting the body without cutting the frame, a longitudinal segment of the roof and a longitudinal section of the floor of the car body immediately behind the door posts to sever the car body into front and rear sections; disconnecting the steering shaft from the steering gear for the front wheels; with the front fenders and the engine compartment hood removed, unbolting the front section of the car body from the frame and displacing said front section of the car body and the steering shaft as a unit rearwardly away from the front wheels along the frame to bring the severed front and rear sections of the roof into aligned, abutting juxtaposition; bolting the front section of the car body to the frame in its rearwardly displaced position along the frame, and joining said front and rear sections of the car body to each other at the roof and floor to provide a converted unitary car body which has been shortened immediately behind the door posts; operatively coupling an extension shaft between the steering shaft and the steering gear for the front wheels; and attaching to the car body an engine compartment hood and front fenders which are longer than the original hood and fenders by an amount substantially equal to the length of the segment removed from the roof.
Claim 2
Independent Claim
265 words
A method of converting a passenger car, which has a four-door body bolted to the frame, to provide a shortened body at the back and a lengthened engine compartment at the front without structurally modifying the frame, which method comprises the steps of: removing, by cutting the body without cutting the frame, a longitudinal segment of the roof and a longitudinal section of the floor of the car body immediately behind the door posts to sever the car body into front and rear sections; disconnecting the steering shaft from the steering gear for the front wheels; with the front fenders and the engine compartment hood removed, unbolting the front section of the car body from the frame and displacing said front section of the car body and the steering shaft as a unit rearwardly away from the front wheels along the frame to bring the severed front and rear sections of the roof into aligned, abutting juxtaposition; bolting the front section of the car body to the frame in its rearwardly displaced position along the frame, and joining said front and rear sections of the car body to each other at the roof and floor to provide a converted unitary car body which has been shortened immediately behind the door posts; operatively coupling an extension shaft between the steering shaft and the steering gear for the front wheels; and attaching to the car body an engine compartment hood and front fenders which are longer than the original hood and fenders by an amount substantially equal to the length of the segment removed from the roof.
Claim 3
Dependent Claim
26 words
A method according to claim 1, wherein the car has a front wheel drive, and the engine is maintained in its original position on the frame.
Claim 4
Dependent Claim
130 words
A method according to claim 1, wherein the car has a rear wheel drive including a drive shaft extending through a drive shaft tunnel along the bottom of the car, and further comprising the steps of: removing the drive shaft from said tunnel and removing a longitudinal segment of said tunnel before displacing the front section of the car body rearwardly along the frame; displacing the engine rearwardly along the frame in unison with the rearward displacement of the front section of the car body; joining the severed front and rear sections of the drive shaft tunnel to provide a unitary, shortened tunnel after the front section of the car body is displaced rearwardly along the frame; and putting a correspondingly shorter drive shaft in the shortened drive shaft tunnel.
Claim 5
Dependent Claim
37 words
A method according to claim 1, wherein the front and rear doors and seats, the front fenders and the engine compartment hood are removed from the car body before it is severed at the roof and floor.
Claim 6
Dependent Claim
41 words
A method according to claim 4, and further comprising the steps of closing the openings in the opposite sides of the car body immediately behind the door posts after the front and rear sections of the roof and floor are joined.
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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) | 1984-08-10 | 1985-02-09 | 1985-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-10 | 1989-02-09 | 1989-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-10 | 1993-02-09 | 1993-08-11 | $7700.00 | Window Closed / Lapsed |