Patent US3598426A successfully refreshed from Google Patents.
US3598426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer hitch for motorcycle
Assignee: Wheel Mate Corp
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Filing: 1969-10-29
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Granted: 1971-08-10
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Expires: 1989-10-29
Abstract
Abstract A hitch particularly adapted to fit a motorcycle or other sport vehicle with rear mounted shock absorbers is disclosed. A Ushaped frame extends forwardly along the sides of the rear wheel and is connected at the lower mount of the shock absorber. Forwardly and upwardly extending braces are connected to the top mounts for the shock absorber; shock loads from the trailer being thereby transmitted to the shock absorber of the vehicle for dissipation. The braces have an obtuse angle at a midpoint to avoid interference with the exterior of the shock absorbers and adjustment of the frame and the braces at two points allows adaptation to different vehicles.
Inventors
- 👤 Nathan E Spiese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:19
CPC Classifications
B; B62; B62K; B62K27/00; B62K27/003; B62K27/10; B62K27/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
120 words
A trailer hitch for attachment to a sport vehicle having rear mounted shock absorbers comprising a U-shaped frame extending forwardly along the sides of the rear wheel of said vehicle, first pivotal connector means for attaching the forward end of said frame to said vehicle for movement with one end of said shock absorbers, brace means interconnected at pivotal joints with said frame to support the same above the ground, means at the rear of said frame for receiving the trailer, and second pivotal connector means for attaching the forward end of said brace means to said vehicle for movement with the other end of said shock absorbers, whereby shock loads from said trailer are transmitted to said shock absorbers.
Claim 2
Dependent Claim
120 words
A trailer hitch for attachment to a sport vehicle having rear mounted shock absorbers comprising a U-shaped frame extending forwardly along the sides of the rear wheel of said vehicle, first pivotal connector means for attaching the forward end of said frame to said vehicle for movement with one end of said shock absorbers, brace means interconnected at pivotal joints with said frame to support the same above the ground, means at the rear of said frame for receiving the trailer, and second pivotal connector means for attaching the forward end of said brace means to said vehicle for movement with the other end of said shock absorbers, whereby shock loads from said trailer are transmitted to said shock absorbers.
Claim 3
Dependent Claim
23 words
The combination of claim 1 wherein said first and second connector means include the mounting lugs on said vehicle for said shock absorbers.
Claim 4
Dependent Claim
37 words
The combination of claim 2 wherein said first and second connector means each includes shoulder means on said lugs for allowing free pivotal movement of said frame and said brace means with respect to said shock absorbers.
Claim 5
Dependent Claim
23 words
The combination of claim 1 wherein said brace means includes a pair of arms extending forwardly along the sides of said rear wheel.
Claim 6
Dependent Claim
41 words
The combination of claim 1 wherein the lever arm distance from said trailer receiving means to said pivotal joint is shorter by an approximate factor of three than the lever arm distance from said first connector means to said pivotal joint.
Claim 7
Dependent Claim
22 words
The combination of claim 5 wherein said joints include bushing means for allowing free pivotal movement between said arms and said frame.
Claim 8
Dependent Claim
53 words
The combination of claim 4 wherein said first connector means is located at the lower end of said shock absorbers, said frame extending substantially parallel to the ground, said second connector means being located at the upper end of said shock absorbers, said brace means extending at an acute angle to said frame.
Claim 9
Dependent Claim
57 words
The combination of claim 7 wherein said brace means includes a pair of arms extending forwardly along the sides of said rear wheel, said arms having an obtuse angle at a midpoint, the forward end of said arms extending substantially parallel to said frame, whereby interference with said shock absorbers is avoided at said second connector means.
Claim 10
Dependent Claim
33 words
The combination of claim 1 wherein said first connector means includes a plurality of apertures on said frame to allow adjustment of the rearward extent of said frame to adapt to different vehicles.
Claim 11
Dependent Claim
47 words
The combination of claim 5 wherein said pivotal joints include a plurality of apertures on said arms whereby the height of said frame above the ground can be adjusted in accordance with the operative length of said shock absorber and as required to adapt to different vehicles.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |