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US3780894A Expired / Lapsed US ⏱️ 0.0 years remaining

Trailer

Assignee: Individual
•
Filing: 1969-09-08
•
Granted: 1973-12-25
•
Expires: 1989-09-08
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Abstract

Abstract A trailer for transporting bulk boxes loaded with fruit from the field and the like, to a remote location. The trailer is provided with a flat bed which is pivotally carried on an axle so that such can be pivoted to an unloading position. The flat bed is weighted so that when such is loaded with bulk boxes it will pivot to the unloaded position, and when the bulk boxes are unloaded therefrom the flat bed will automatically return to the horizontal position. A retaining member is carried adjacent the rear end of the flat bed for preventing the bulk boxes from rolling off the bed. Means are provided for automatically lowering the retaining member out of the path of the bulk boxes as the flat bed pivots to the unloaded position.

Inventors

  • 👤 J Holmes
  • 👤 F Holmes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 08:26
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/04; B60P1/24

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 303 words
A trailer for transporting bulk boxes loaded with fruit from fields and the like to a remote location comprising: a wheel assembly rotatably carried on an axle, a supporting horizontal frame carried adjacent one end by said wheel assembly, a hitch carried adjacent the other end of said frame for attachment to a vehicle capable of pulling said trailer, an elongated flat bed pivotally carried on said axle independently of said horizontal frame, said elongated flat bed including opposed elongated frame members on each side of the longitudinal centerline of the trailer, a plurality of spaced rollers disposed transversely between said opposed elongated frame members for supporting said bulk boxes, a retaining member carried adjacent a rear end of said flat bed in a vertical position for preventing said bulk boxes from rolling off flat bed when said flat bed is in a horizontal transporting position, latch means engaging said flat bed for maintaining said flat bed in a horizontal position when transporting said bulk boxes, means for releasing said latch means for allowing said flat bed to pivot on said axle to an unloading position where said rear end of said flat bed rests on the ground allowing said bulk boxes to roll off said flat bed, said axle positioned forward of the center of said flat bed so that when said bulk boxes are evenly positioned on said flat bed such pivots to the unloading position upon releasing said latch means, a counterweight on the front end of said flat bed for returning said flat bed to the horizontal position after said bulk boxes are unloaded, and linkage means coupled between said flat bed and said supporting frame for automaticAlly lowering said retaining means out of the path of said bulk boxes as said flat bed pivots to said unloading position.
Claim 2
Dependent Claim 303 words
A trailer for transporting bulk boxes loaded with fruit from fields and the like to a remote location comprising: a wheel assembly rotatably carried on an axle, a supporting horizontal frame carried adjacent one end by said wheel assembly, a hitch carried adjacent the other end of said frame for attachment to a vehicle capable of pulling said trailer, an elongated flat bed pivotally carried on said axle independently of said horizontal frame, said elongated flat bed including opposed elongated frame members on each side of the longitudinal centerline of the trailer, a plurality of spaced rollers disposed transversely between said opposed elongated frame members for supporting said bulk boxes, a retaining member carried adjacent a rear end of said flat bed in a vertical position for preventing said bulk boxes from rolling off flat bed when said flat bed is in a horizontal transporting position, latch means engaging said flat bed for maintaining said flat bed in a horizontal position when transporting said bulk boxes, means for releasing said latch means for allowing said flat bed to pivot on said axle to an unloading position where said rear end of said flat bed rests on the ground allowing said bulk boxes to roll off said flat bed, said axle positioned forward of the center of said flat bed so that when said bulk boxes are evenly positioned on said flat bed such pivots to the unloading position upon releasing said latch means, a counterweight on the front end of said flat bed for returning said flat bed to the horizontal position after said bulk boxes are unloaded, and linkage means coupled between said flat bed and said supporting frame for automaticAlly lowering said retaining means out of the path of said bulk boxes as said flat bed pivots to said unloading position.
Claim 3
Dependent Claim 93 words
The trailer as set forth in claim 1, wherein said means coupled between said flat bed and said supporting frame includes an angle member pivotally connected at an elbow to said flat bed, one end of said angle member coupled to said supporting frame, another end of said angle member being coupled through a connecting rod to said retaining member so that when said flat bed is pivoted to the unloading position said retaining member is moved out of the path of said boxes allowing said boxes to roll off said flat bed.

References Cited (Backward Citations)

US1459385A Cited
US1481763A Cited
US2225522A Cited
US2408862A Cited
US3335887A Cited
US3432053A Cited
US3455474A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-12-24 1977-06-25 1977-12-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-12-24 1981-06-25 1981-12-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-12-24 1985-06-25 1985-12-25 $7700.00 Window Closed / Lapsed

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