US3684306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steerable toboggan
Assignee: Individual
•
Filing: 1970-12-31
•
Granted: 1972-08-15
•
Expires: 1990-12-31
Abstract
Abstract In a pivotally connected, two-piece steerable toboggan having front and back sections, improved steering characteristics are obtained by locating the pivotal connection for the sections within the front half of the flat portion of the front section and substantially intermediate to the sides thereof.
Inventors
- 👤 William G Rathmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:35
CPC Classifications
B; B62; B62B; B62B13/00; B62B13/02; B62B13/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
172 words
A pivotally connected, two piece steerable toboggan comprising: a front section and a back section, front and back sections having substantially the same lateral width and each of said sections terminating in lateral sides which are substantially parallel, said front section including a substantially flat portion having a front end and a rear end with the front end being integral with an upwardly and backwardly extending curved portion having a rearward terminus, said back section having a forward portion and a rearward portion and terminating at its forward end in a front end portion, said forward portion of the back section overlying the flat portIon of the front section with the front end portion of said back section being within the front half of said flat portion but sufficiently spaced from said curved portion to permit up to 180 degree rotational movement, and means located substantially intermediate to the sides of the toboggan for pivotally connecting the front end portion of the back section to the flat portion of the front section.
Claim 2
Dependent Claim
172 words
A pivotally connected, two piece steerable toboggan comprising: a front section and a back section, front and back sections having substantially the same lateral width and each of said sections terminating in lateral sides which are substantially parallel, said front section including a substantially flat portion having a front end and a rear end with the front end being integral with an upwardly and backwardly extending curved portion having a rearward terminus, said back section having a forward portion and a rearward portion and terminating at its forward end in a front end portion, said forward portion of the back section overlying the flat portIon of the front section with the front end portion of said back section being within the front half of said flat portion but sufficiently spaced from said curved portion to permit up to 180 degree rotational movement, and means located substantially intermediate to the sides of the toboggan for pivotally connecting the front end portion of the back section to the flat portion of the front section.
Claim 3
Dependent Claim
26 words
A steerable toboggan according to claim 1 wherein a bearing plate overlies and is attached to substantially all of the flat portion of the front section.
Claim 4
Dependent Claim
52 words
A steerable toboggan according to claim 2 wherein said flat portion and integral curve portion comprise a plurality of adjacently disposed, longitudinally extending, flexible strips having their front end portion bent up and back to form said curved portion and including means for maintaining said front end portion in a curved position.
Claim 5
Dependent Claim
31 words
A steerable toboggan according to claim 3 wherein said back section comprises a plurality of adjacently disposed, longitudinally extending, flexible strips held in substantially fixed position by spaced, cross-strips attached thereto.
Claim 6
Dependent Claim
79 words
A steerable toboggan according to claim 4 wherein the means for pivotally connecting the front and back sections comprises a cylindrical member mounted on said bearing surface and attached to said flat portion and disposed within a relatively enlarged corresponding opening in the front end portion of said back section, said pivotal connection means including releasable locking means for maintaining the front end portion of the back section and the flat portion of the front section in engageable relationship.
Claim 7
Dependent Claim
68 words
A steerable toboggan according to claim 5 wherein the releasable locking means comprises a rod attached at one end to said cylindrical member and extending upwardly through the opening in the front portion of the back section, said rod being provided with a transverse opening substantially adjacent to the upper side of said front end portion, and a releasable locking pin engaging the transverse opening in said rod.
Claim 8
Dependent Claim
37 words
A steerable toboggan according to claim 6 wherein the rearward terminus of the curved portion is in a plane which is rearwardly adjacent to the vertical plane which passes through the front end of the flat portion.
Claim 9
Dependent Claim
24 words
A steerable toboggan according to claim 7 wherein the pivotal connecting means and the terminus of the curved portion are in substantial vertical alignment.
Claim 10
Dependent Claim
39 words
A steerable toboggan according to claim 8 wherein the underside of the rearward portion of the back section and the underside of the flat portion of the front section are provided with a plurality of spaced, longitudinally extending runners.
Claim 11
Dependent Claim
48 words
A steerable toboggan according to claim 9 wherein first and second clamps are attached to the right and left hand sides of the toboggan adjacent the terminus of the curved portion, respectively, for attaching rope means for selectively steering said front section in a right or left-hand direction.
Claim 12
Dependent Claim
30 words
A steerable toboggan according to claim 10 wherein the front section is provided with means for limiting the pivotal rotation of the front section with respect to the back section.
Claim 13
Dependent Claim
29 words
A steerable toboggan according to claim 1 wherein the front end portion of the back section is within the front one-fourth of the flat portion of the front section.
Claim 14
Dependent Claim
167 words
A pivotally connected, two piece steerable toboggan comprising: a front section and a back section; said front and back sections having substantially the same lateral width and each of said sections terminating in lateral sides which are substantially parallel; said front section including a substantially flat portion having a front end and a rear end with the front end being integral with an upwardly and outwardly extending portion; said back section having a forward portion and a rearward portion and terminating at its forward end in a front end portion; said forward portion of the back section overlying the flaT portion of the front section with the front end portion of said back section being within the front half of said flat portion but sufficiently spaced from said curved portion to permit up to 180* rotational movement; and means located substantially intermediate to the sides of the toboggan for pivotally connecting the front end portion of the back section to the flat portion of the front section.
Claim 15
Dependent Claim
167 words
A pivotally connected, two piece steerable toboggan comprising: a front section and a back section; said front and back sections having substantially the same lateral width and each of said sections terminating in lateral sides which are substantially parallel; said front section including a substantially flat portion having a front end and a rear end with the front end being integral with an upwardly and outwardly extending portion; said back section having a forward portion and a rearward portion and terminating at its forward end in a front end portion; said forward portion of the back section overlying the flaT portion of the front section with the front end portion of said back section being within the front half of said flat portion but sufficiently spaced from said curved portion to permit up to 180* rotational movement; and means located substantially intermediate to the sides of the toboggan for pivotally connecting the front end portion of the back section to the flat portion of the front section.
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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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |