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US4172638A Expired / Lapsed US ⏱️ 0.0 years remaining

Dual mirror arrangement for lift trucks

Assignee: Individual
•
Filing: 1978-04-28
•
Granted: 1979-10-30
•
Expires: 1998-04-28
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Abstract

Abstract A pair of mirrors are adjustably mounted at one side of the upright structural frame at the front end of a fork lift truck. One of the mirrors faces forwardly and the other faces rearwardly. The mirrors are adjusted so that the forwardly facing mirror reflects an image of the area directly in front of the truck into the rearwardly facing mirror and is readily visible to the operator.

Inventors

  • 👤 Morton A. Freedman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 03:27
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/002

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 221 words
In combination a fork lift truck having a vertically extending frame at the front end thereof, said frame extending laterally outwardly beyond and vertically upwardly above the vehicle operator seated directly behind said frame so as to obstruct the frontal view of the operator, a pair of forwardly projecting tines mounted for vertical movement on said frame, said frame including upright frame members at the laterally opposite outer sides thereof, a bracket supported on one of said frame members and having an arm extending laterally outwardly and downwardly from said frame member, said arm having a first portion extending laterally outwardly from said one frame member generally transversely of the longitudinal axis of the truck, a second portion extending from the outer end of the first portion in a direction rearwardly of the truck and a third portion extending from the rear end of the second portion in a direction inwardly of the truck, said third portion terminating at its free end laterally outwardly and below the inner end of said first portion, a rearwardly facing mirror mounted on said first arm portion intermediate its ends, a forwardly facing mirror mounted on said third arm portion adjacent the free end thereof at a level below the rearwardly facing mirror, said mirrors being mounted on said arm portions for universal pivotal movement.
Claim 2
Dependent Claim 221 words
In combination a fork lift truck having a vertically extending frame at the front end thereof, said frame extending laterally outwardly beyond and vertically upwardly above the vehicle operator seated directly behind said frame so as to obstruct the frontal view of the operator, a pair of forwardly projecting tines mounted for vertical movement on said frame, said frame including upright frame members at the laterally opposite outer sides thereof, a bracket supported on one of said frame members and having an arm extending laterally outwardly and downwardly from said frame member, said arm having a first portion extending laterally outwardly from said one frame member generally transversely of the longitudinal axis of the truck, a second portion extending from the outer end of the first portion in a direction rearwardly of the truck and a third portion extending from the rear end of the second portion in a direction inwardly of the truck, said third portion terminating at its free end laterally outwardly and below the inner end of said first portion, a rearwardly facing mirror mounted on said first arm portion intermediate its ends, a forwardly facing mirror mounted on said third arm portion adjacent the free end thereof at a level below the rearwardly facing mirror, said mirrors being mounted on said arm portions for universal pivotal movement.
Claim 3
Dependent Claim 21 words
The combination set forth in claim 1 wherein said arm comprises a one piece metal strip bent into generally U shape.
Claim 4
Dependent Claim 18 words
The combination set forth in claim 1 wherein each of said arm portions inclines in a downwardly direction.
Claim 5
Dependent Claim 39 words
The combination set forth in claim 3 wherein said third arm portion is inclined downwardly in a rearward direction and inwardly toward the vehicle at an angle of about 45° from the rear end of the second arm portion.
Claim 6
Dependent Claim 26 words
The combination set forth in claim 1 wherein said bracket has a magnet base adapted to magnetically adhere to said frame member for adjustable positioning thereon.
Claim 7
Dependent Claim 24 words
The combination set forth in claim 1 wherein said rearwardly facing mirror is vertically elongated and said forwardly facing mirror has a convex face.

References Cited (Backward Citations)

US1918802A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-10-29 1983-04-30 1983-10-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-10-29 1987-04-30 1987-10-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-10-29 1991-04-30 1991-10-30 $7700.00 Window Closed / Lapsed

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