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US4029352A Expired / Lapsed US ⏱️ 0.0 years remaining

Foldable hand rail

Assignee: Individual
•
Filing: 1976-04-07
•
Granted: 1977-06-14
•
Expires: 1996-04-07
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Abstract

Abstract A foldable hand rail for the side entrance of a camper trailer. The top end of the hand rail is pivotally carried in a bracket mounted upon the side of the camper trailer, and the hand rail may swing from a down-hanging, folded position alongside the camper wall to an outwardly-inclined position for use. This hand rail is supported by a strut. The bottom end of the strut is pivotally connected to a bracket upon the side of the camper trailer. It will thus swing from a folded position against the side of the camper and under the hand rail to an outwardly-inclined position where the top of the strut supports the extended end of the hand rail. A throw arm connects the hand rail and strut. One end of the throw arm is pivoted to an intermediate point on the hand rail and the other end is pivoted to the upper end of the strut. Thus, it may swing from a first position when the two components are retracted against the side of the camper trailer to an opposite position when the components are extended. A lateral stabilizer on the strut and a latch to hold the assembly together complete the organization.

Inventors

  • 👤 Lee T. Evans

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 23:47
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32; B60P3/36; E; E04; E04F; E04F11/00; E04F11/18; E04F11/1865

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 153 words
A foldable hand rail assembly to be placed alongside the side entrance of a camper trailer and comprising, in combination therewith: a. a first bracket affixed to the side wall of the trailer alongside the trailer entrance and at a suitable height above the floor of the trailer for holding the top end of a hand rail; b. a hand rail pivotally mounted upon said first bracket to hang therefrom alongside the trailer wall whenever it is retracted, but to swing outwardly therefrom whenever it is extended; c. a second bracket affixed to the side wall of the trailer below the first mentioned bracket at a height near the floor of the trailer; and d. a strut below the hand rail pivotally connected to said second bracket to upstand alongside the trailer wall when it is retracted and to swing outwardly therefrom to engage and support the hand rail at its extended position.
Claim 2
Dependent Claim 153 words
A foldable hand rail assembly to be placed alongside the side entrance of a camper trailer and comprising, in combination therewith: a. a first bracket affixed to the side wall of the trailer alongside the trailer entrance and at a suitable height above the floor of the trailer for holding the top end of a hand rail; b. a hand rail pivotally mounted upon said first bracket to hang therefrom alongside the trailer wall whenever it is retracted, but to swing outwardly therefrom whenever it is extended; c. a second bracket affixed to the side wall of the trailer below the first mentioned bracket at a height near the floor of the trailer; and d. a strut below the hand rail pivotally connected to said second bracket to upstand alongside the trailer wall when it is retracted and to swing outwardly therefrom to engage and support the hand rail at its extended position.
Claim 3
Dependent Claim 33 words
The hand rail defined in claim 1, wherein: the hand rail overlies the strut when both members are retracted; and a latch on the strut member engaging the hand rail when so retracted.
Claim 4
Dependent Claim 85 words
The hand rail defined in claim 1, wherein: the hand rail overlies the strut when both members are retracted; and a throw arm connecting the hand rail and strut with one end of the throw arm connecting with a pivot at the extended end of the strut and the other end of the throw arm connecting with the hand rail at a point spaced from the extended end of the hand rail a distance which is slightly greater than the length of the throw arm.
Claim 5
Dependent Claim 66 words
The hand rail defined in claim 3, wherein: said throw arm is a flat bar; a flat bar latch on the strut member engaging the hand rail when it is retracted, and wherein: the hand rail is formed as a pair of tubes held together in spaced parallelism by pivot pins, with the spacing between them sufficient to receive the flat-bar throw arm and the latch.
Claim 6
Dependent Claim 39 words
The hand rail defined in claim 4, wherein: the strut is formed as two members held together in spaced parallelism by pivot pins and at a spacing to receive the flat bar throw and the latch between the members.
Claim 7
Dependent Claim 31 words
The hand rail defined in claim 1, wherein: said second bracket includes a lateral stabilizer strap to restrain the hand rail against lateral movement when it and the strut are interconnected.

References Cited (Backward Citations)

US2837260A Cited
US2861731A Cited
US3401918A Cited
US3858905A Cited
US3964215A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-06-13 1980-12-13 1981-06-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-06-13 1984-12-13 1985-06-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-06-13 1988-12-13 1989-06-14 $7700.00 Window Closed / Lapsed

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