US4365820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer connecting running gear
Assignee: Individual
•
Filing: 1980-09-08
•
Granted: 1982-12-28
•
Expires: 2000-09-08
Abstract
Abstract An improved trailer connecting running gear for attachment to tractor drawn trailers, recreational vehicles and the like. The running gear is slidably affixed to a trailer frame and is held in a forward or rearward position by a double fifth wheel. The frame is vertically supported along substantially the entire overlapping portion of the trailer frame and the running gear. The running gear is held to the trailer frame so that it does not turn with respect to the frame.
Inventors
- 👤 Donald L. Rush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:20
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0857; B62D53/0864
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
207 words
A running gear and trailer combination for tractor-drawn trailers, recreational vehicles and the like, especially useful for multiple trailers, said combination comprising: a trailer support frame affixed to the underside of a trailer body, said trailer support frame having a support surface extending to about the rear of the trailer; and a running gear member having a fifth wheel, said running gear member being slidingly attached to said trailer support frame by attachment means in a manner to permit both the longitudinal sliding of the running gear member with respect to the trailer support frame and the vertical support of the trailer support frame along substantially the entire overlapping portion of the running gear member and the trailer support frame and a locking means comprising a double fifth wheel having a pair of jaws, one jaw facing forward and one jaw facing rearward, and a pair of king pins affixed to the underside of the trailer to hold the double fifth wheel in a forward position or a rearward position, said running gear member having at least two rails slidingly held to the trailer support frame by said attachment means to prohibit the rotational movement of the running gear member with respect to the trailer support frame.
Claim 2
Dependent Claim
207 words
A running gear and trailer combination for tractor-drawn trailers, recreational vehicles and the like, especially useful for multiple trailers, said combination comprising: a trailer support frame affixed to the underside of a trailer body, said trailer support frame having a support surface extending to about the rear of the trailer; and a running gear member having a fifth wheel, said running gear member being slidingly attached to said trailer support frame by attachment means in a manner to permit both the longitudinal sliding of the running gear member with respect to the trailer support frame and the vertical support of the trailer support frame along substantially the entire overlapping portion of the running gear member and the trailer support frame and a locking means comprising a double fifth wheel having a pair of jaws, one jaw facing forward and one jaw facing rearward, and a pair of king pins affixed to the underside of the trailer to hold the double fifth wheel in a forward position or a rearward position, said running gear member having at least two rails slidingly held to the trailer support frame by said attachment means to prohibit the rotational movement of the running gear member with respect to the trailer support frame.
Claim 3
Dependent Claim
26 words
The device of claim 1 wherein said trailer support frame comprises a pair of parallel longitudinal rails permanently affixed to the underside of a trailer body.
Claim 4
Dependent Claim
14 words
The device of claim 1 wherein the fifth wheel is positioned between said rails.
Claim 5
Dependent Claim
11 words
The device of claim 1 wherein said rails are "I" beams.
Claim 6
Dependent Claim
31 words
The device of claim 1 wherein said attachment means with which said rails of said running gear member are affixed to the trailer support frame comprise two pairs of channel members.
References Cited (Backward Citations)
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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) | 1985-12-27 | 1986-06-28 | 1986-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-27 | 1990-06-28 | 1990-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-27 | 1994-06-28 | 1994-12-28 | $7700.00 | Window Closed / Lapsed |