Patent US3557894A successfully refreshed from Google Patents.
US3557894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient frame for racing gocart
Assignee: Individual
•
Filing: 1969-03-13
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Granted: 1971-01-26
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Expires: 1989-03-13
Abstract
Abstract The gocart chassis has a front wheeled axle to which the front ends of the legs of a U-shaped main frame are welded. A rear wheeled axle disposed below the rear end of the main frame is connected to the main frame by means which prevent metal-to-metal contact so as to eliminate shock and vibration, the connecting means also forming a mount for a motor to rotate the rear axle. A U-shaped seat frame of shorter length than the main frame has the front ends of its legs also welded to the front axle, the seat frame lying for the most part below and within the width of and free from touching the main frame. The rear end of the seat frame is connected to the overlying legs of the main frame by means which prevent metal-to-metal contact so as to eliminate shock and vibration. A combined seat and gas tank is secured to the seat frame free from contact with the main frame thereby allowing full flexibility of the main frame. Steering means for the front wheels is mounted on the seat frame and front axle in advance of the seat.
Inventors
- 👤 Donald E Hanley
- 👤 Charles L Hogensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:35
CPC Classifications
B; B62; B62D; B62D21/00; B62D21/18; B62D21/183
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
187 words
A racing gocart chassis consisting of a front wheeled axle; a U-shaped main frame having the front ends of its legs welded to the front axle; a rear wheeled axle disposed below the rear end of the main frame; means connecting the rear axle to the main frame while preventing metal-to-metal contact therewith so as to eliminate shock and vibration; said means also forming a mount for a source of power to rotate said rear axle; a U-shaped seat frame of shorter length than the main frame and having the front ends of its legs welded to the front axle; said seat frame lying for the most part below and within the width of and free from contact with the main frame; other means connecting the rear end of the seat frame to the overlying legs of the main frame while preventing metal-to-metal contact therewith so as to eliminate shock and vibration; a seat secured upon the seat frame free from contact with the main frame, thereby allowing full flexibility of the main frame; and steering means mounted on the seat frame in advance of the seat.
Claim 2
Dependent Claim
187 words
A racing gocart chassis consisting of a front wheeled axle; a U-shaped main frame having the front ends of its legs welded to the front axle; a rear wheeled axle disposed below the rear end of the main frame; means connecting the rear axle to the main frame while preventing metal-to-metal contact therewith so as to eliminate shock and vibration; said means also forming a mount for a source of power to rotate said rear axle; a U-shaped seat frame of shorter length than the main frame and having the front ends of its legs welded to the front axle; said seat frame lying for the most part below and within the width of and free from contact with the main frame; other means connecting the rear end of the seat frame to the overlying legs of the main frame while preventing metal-to-metal contact therewith so as to eliminate shock and vibration; a seat secured upon the seat frame free from contact with the main frame, thereby allowing full flexibility of the main frame; and steering means mounted on the seat frame in advance of the seat.
Claim 3
Dependent Claim
88 words
In a gocart chassis as set forth in claim 1, said first means comprising horizontal mounting plates for the source of power adjacent the rear corners of the main frame and disposed above said frame, said plates having depending journal portions for said rear axle, a plurality of upstanding bolts on the main frame extending through holes in the respective plates and having nuts on their upper ends; and rubber bushings on said bolts disposed above and below the plates and engaging the main frame and nuts respectively.
Claim 4
Dependent Claim
62 words
In a gocart chassis as set forth in claim 1, said other means comprising upstanding bolts at the rear corners of the seat frame extending through perforated lugs on the legs of the main frame and having nuts on their upper ends; and rubber bushings on said bolts disposed above and below the lugs and engaging the seat frame and nuts respectively.
Claim 5
Dependent Claim
41 words
In a gocart chassis as set forth in claim 1, said seat being formed of fibre glass, and the sides of the seat being turned upwardly and rounded over and above the legs of the main frame to avoid contact therewith.
Claim 6
Dependent Claim
45 words
In a gocart chassis as set forth in claim 1, said steering means comprising a steering rod having its lower end journaled on the front axle and having its upper end journaled on a bracket welded to the seat frame and carrying a steering wheel.
Claim 7
Dependent Claim
40 words
In a gocart chassis as set forth in claim 1, a combined footrest and bumper welded to the front axle and forming a continuation of the main frame, said footrest being curved upwardly and extending forwardly beyond the front wheels.
Claim 8
Dependent Claim
81 words
In a gocart chassis as set forth in claim 1, the legs of the seat frame lying wholly in the horizontal plane of the front axle; and the front ends of the legs of the main frame lying betweEn and in the plane of the seat frame and then flaring outwardly and rising above the legs of the seat frame in advance of the seat and continuing rearwardly in said elevated horizontal plane to the rear end of the main frame.
Claim 9
Dependent Claim
198 words
A racing gocart chassis consisting of a front wheeled axle; a U-shaped main frame having the front ends of its legs welded to the front axle; a rear wheeled axle disposed below the rear end of the main frame; means connecting the rear axle to the main frame while preventing metal-to-metal contact therewith so as to eliminate shock and vibration, said means also forming a mount for a source of power to rotate said rear axle; a U-shaped seat frame of shorter length than the main frame and having the front ends of its legs welded to the front axle, said seat frame lying for the most part below and within the width of and free from contact with the main frame; other means connecting the rear end of the seat frame to the overlying legs of the main frame while preventing metal-to-metal contact therewith so as to eliminate shock and vibration; a combined seat and gas tank secured to the seat frame free from contact with the main frame, thereby allowing full flexibility of the main frame; and steering means for the front wheels mounted on the seat frame and front axle in advance of the seat.
Claim 10
Dependent Claim
198 words
A racing gocart chassis consisting of a front wheeled axle; a U-shaped main frame having the front ends of its legs welded to the front axle; a rear wheeled axle disposed below the rear end of the main frame; means connecting the rear axle to the main frame while preventing metal-to-metal contact therewith so as to eliminate shock and vibration, said means also forming a mount for a source of power to rotate said rear axle; a U-shaped seat frame of shorter length than the main frame and having the front ends of its legs welded to the front axle, said seat frame lying for the most part below and within the width of and free from contact with the main frame; other means connecting the rear end of the seat frame to the overlying legs of the main frame while preventing metal-to-metal contact therewith so as to eliminate shock and vibration; a combined seat and gas tank secured to the seat frame free from contact with the main frame, thereby allowing full flexibility of the main frame; and steering means for the front wheels mounted on the seat frame and front axle in advance of the seat.
Claim 11
Dependent Claim
101 words
In a gocart chassis as set forth in claim 8, said first means comprising horizontal mounting plates for the source of power adjacent the rear corners of the main frame and disposed above said frame, said plates having depending journal portions for said rear axle, a plurality of upstanding bolts on the main frame extending through holes in the respective plates and having nuts on their upper ends; and rubber bushings on said bolts disposed above and below the plates and engaging the main frame and nuts respectively; said plates having other holes therein for securing the source of power thereon.
Claim 12
Dependent Claim
62 words
In a gocart chassis as set forth in claim 8, said other means comprising upstanding bolts at the rear corners of the seat frame extending through perforated lugs on the legs of the main frame and having nuts on their upper ends; and rubber bushings on said bolts disposed above and below the lugs and engaging the seat frame and nuts respectively.
Claim 13
Dependent Claim
56 words
In a gocart chassis as set forth in claim 8, said combined seat and gas tank being formed of fibre glass, the gas tank being integral with the back of the seat and the sides of the seat being turned upwardly and rounded over and above the legs of the main frame to avoid contact therewith.
Claim 14
Dependent Claim
47 words
In a gocart chassis as set forth in claim 8, said steering means comprising a steering rod having its lower end journaled on the front axle and having its upper end journaled on an inverted U-shaped bracket welded to the seat frame and carrying a steering wheel.
Claim 15
Dependent Claim
41 words
In a gocart chassis as set forth in claim 8, a U-shaped combined footrest and bumper welded to the front axle and forming a continuation of the main frame, said footrest being curved upwardly and extending forwardly beyond the front wheels.
Claim 16
Dependent Claim
81 words
In a gocart chassis as set forth in claim 8, the legs of the seat frame lying wholly in the horizontal plane of the front axle; and the front ends of the legs of the main frame lying between and in the plane of the seat frame and then flaring outwardly and rising above the legs of the seat frame in advance of the seat and continuing rearwardly in said elevated horizontal plane to the rear end of the main frame.
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |