Patent US4353563A successfully refreshed from Google Patents.
US4353563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snowmobile towbar
Assignee: Individual
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Filing: 1979-12-10
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Granted: 1982-10-12
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Expires: 1999-12-10
Abstract
Abstract This invention relates to a towbar particularly adapted for attachment to a snowmobile for towing the snowmobile. The towbar includes an elongated tubular tongue with a hitch connected to one end for releasably securing the tongue to a rear hitch on a snowmobile. An elongated tubular crossbar is fixed to the other end of the tongue. The crossbar is adapted for releasable connection to runners of a snowmobile which is to be towed. An elongated ear is connected to each end of the crossbar for holding the towbar onto the runner. Each ear has one end fixed to the crossbar and the other end spaced away from the crossbar and extending toward the other ear for receiving a portion of a runner between the ear and the crossbar for holding the runner in connection with the towbar.
Inventors
- 👤 Thomas R. Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:58
CPC Classifications
B; B62; B62B; B62B17/00; B62B13/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
106 words
A towbar for towing a snowmobile comprising: an elongated tongue, a hitch connected to one end of said tongue for releasably securing the tongue to a vehicle, an elongated crossbar connected to the other end of the tongue for engagement with skis of a towed snowmobile, and an elongated ear connected to each end of the crossbar to hold the crossbar in engagement with the skis, each of said ears having one end fixed to the crossbar and the other end spaced away from the crossbar and extending toward the other end, each of said ears being no greater distance from the hitch than the crossbar.
Claim 2
Dependent Claim
106 words
A towbar for towing a snowmobile comprising: an elongated tongue, a hitch connected to one end of said tongue for releasably securing the tongue to a vehicle, an elongated crossbar connected to the other end of the tongue for engagement with skis of a towed snowmobile, and an elongated ear connected to each end of the crossbar to hold the crossbar in engagement with the skis, each of said ears having one end fixed to the crossbar and the other end spaced away from the crossbar and extending toward the other end, each of said ears being no greater distance from the hitch than the crossbar.
Claim 3
Dependent Claim
31 words
A towbar for towing snowmobile as defined in claim 1 including, a connector attached to the crossbar and to the tongue for fixedly holding the crossbar substantially perpendicular to the tongue.
Claim 4
Dependent Claim
69 words
A towbar for towing a snowmobile as defined in claim 1 wherein, each ear includes a columnar base having one end fixed to the crossbar adjacent to an end of the crossbar and being substantially perpendicular to the crossbar, a leaf portion formed integral with the columnar base and extending away from the crossbar, and a spur formed integral with the leaf portion and extending away from the crossbar.
Claim 5
Dependent Claim
20 words
A towbar for towing a snowmobile as defined in claim 1 wherein, said tongue is tubular having a rectangular cross-section.
Claim 6
Dependent Claim
21 words
A towbar for towing a snowmobile as defined in claim 1 wherein, the crossbar is tubular and has a rectangular cross-section.
Claim 7
Dependent Claim
92 words
A towbar for towing a snowmobile as defined in claim 1 including a connector fixing the crossbar to the tongue, said connector holding the crossbar substantially perpendicular to the tongue, said connector including a pair of U-shaped fasteners, each U-shaped fastener including an elongated base fixed to the tongue, a bar arm formed integal with one end of the base and fixed to the crossbar, and a free arm formed integral with the opposite end of the base and extending substantially perpendicular to the tongue, said free arm having a tie aperture.
Claim 8
Dependent Claim
110 words
A towbar for towing a snowmobile as defined in claim 1 including: a connector attached to the crossbar and to the tongue for fixedly holding the crossbar substantially perpendicular to the tongue; and each of said ears including; a columnar base having one end fixed to the crossbar adjacent to a respective end of the crossbar and being substantially perpendicular to the crossbar, a leaf portion formed integral with the columnar base and extending toward the opposite end of the crossbar and extending away from the crossbar, and a spur formed integral with the leaf portion and extending away from the crossbar and toward the opposite end of the crossbar.
Claim 9
Dependent Claim
163 words
A towbar for towing a snowmobile as defined in claim 1 including: a connector fixing the crossbar to the towbar; said connector holding the crossbar substantially perpendicular to the tongue; said connector including a pair of U-shaped fasteners; each U-shaped fastener including; an elongated base fixed to the tongue, a bar arm formed integral with one end of the base and fixed to the crossbar, and a free arm formed integral with the other end of the base and extending substantially perpendicular to the tongue, said free arm having a tie aperture; and each of said ears including; a columnar base having one end fixed to the crossbar adjacent to a respective end of the crossbar and being substantially perpendicular to the crossbar, a leaf portion formed integral with the columnar base and extending toward the other ear and away from the crossbar, and a spur formed integral with the leaf portion and extending toward the other ear and away from the crossbar.
Claim 10
Dependent Claim
260 words
A towbar for towing a snowmobile comprising: an elongated tubular tongue having a substantially rectangular cross-section, a hitch connected to one end of said tongue for releasably securing the tongue to a vehicle; a pair of U-shaped fasteners secured to the tongue adjacent to the other end thereof; each of said U-shaped fasteners including; an elongated base fixed to the tongue, a free arm formed integral with one end of its respective base and extending outward substantially perpendicular to the tongue, each of said free arms having a tie aperture, and a bar arm formed integral with the other end of respective base and being substantially perpendicular to the tongue; an elongated tubular crossbar having a rectangular cross-section fixed to the bar arms of the U-shaped fasteners and being fixedly held to the tongue substantially perpendicular to the tongue for engagement with skis of a towed snowmobile; and an elongated ear fixed to each of the opposite ends of the crossbar for holding the crossbar in engagement with the skis; each ear including; a columnar base having one end fixed to the crossbar adjacent to the respective end of the crossbar and being substantially perpendicular to the crossbar and substantially perpendicular to the tongue, a leaf portion formed integral with the opposite end of the columnar base extending toward the opposite end of the crossbar and away from the crossbar, and a spur formed integral with the leaf portion and extending toward the opposite end of the crossbar and away from the crossbar a greater amount than the leaf portion.
Claim 11
Dependent Claim
260 words
A towbar for towing a snowmobile comprising: an elongated tubular tongue having a substantially rectangular cross-section, a hitch connected to one end of said tongue for releasably securing the tongue to a vehicle; a pair of U-shaped fasteners secured to the tongue adjacent to the other end thereof; each of said U-shaped fasteners including; an elongated base fixed to the tongue, a free arm formed integral with one end of its respective base and extending outward substantially perpendicular to the tongue, each of said free arms having a tie aperture, and a bar arm formed integral with the other end of respective base and being substantially perpendicular to the tongue; an elongated tubular crossbar having a rectangular cross-section fixed to the bar arms of the U-shaped fasteners and being fixedly held to the tongue substantially perpendicular to the tongue for engagement with skis of a towed snowmobile; and an elongated ear fixed to each of the opposite ends of the crossbar for holding the crossbar in engagement with the skis; each ear including; a columnar base having one end fixed to the crossbar adjacent to the respective end of the crossbar and being substantially perpendicular to the crossbar and substantially perpendicular to the tongue, a leaf portion formed integral with the opposite end of the columnar base extending toward the opposite end of the crossbar and away from the crossbar, and a spur formed integral with the leaf portion and extending toward the opposite end of the crossbar and away from the crossbar a greater amount than the leaf portion.
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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) | 1985-10-11 | 1986-04-12 | 1986-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-11 | 1990-04-12 | 1990-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-11 | 1994-04-12 | 1994-10-12 | $7700.00 | Window Closed / Lapsed |