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US3691817A Expired / Lapsed US ⏱️ 0.0 years remaining

Mobile frame and body straightener

Assignee: Individual
•
Filing: 1970-03-06
•
Granted: 1972-09-19
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Expires: 1990-03-06
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Abstract

Abstract An elongated generally tubular body adapted for movement over a supporting surface and having a pair of generally arcuately shaped arms affixed thereto in outwardly extending relationship for pivotal movement about an axis parallel with the longitudinal axis of the body and for pivotal movement about an axis transverse to the longitudinal axis. A plurality of adjustable support members are affixed to the body for engaging the frame to be straightened and maintain the mobile straightener immovable relative thereto. Hydraulic cylinders and chains are mounted within the body and arms so as to be connectable to a frame and the like and apply a straightening force thereto in substantially any desired direction.

Inventors

  • 👤 Robert P Friend
  • 👤 George R Friend

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 19:40
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/14; B21D1/12

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 353 words
A mobile frame and body straightener comprising: a. a body adapted for movement over a supporting surface and having a longitudinal, generally horizontal axis; b. two transversely extending arms affixed to said body in juxtaposition for independent pivotal movements about first axes approximately parallel with the longitudinal axis of said body and for pivotal movements about second axes transverse to said first axes, respectively; c. means affixed to said arms and said body for positioning and maintaining said arms in a desired orientation about said first axes relative to each other and to said body, each of said arms being generally arcuately shaped with the arc extending toward a frame and the like to be straightened, said arms each being hollow and each having inner and outer arcuate walls connected by side walls, said inner arcuate walls each having a longitudinally extending opening therein with pulley means adjustably mounted in said opening; do means adjustably affixed to said body for engaging a frame and the like to be straightened and maintaining said body substantially fixedly positioned relative to said engaged frame and the like; e. first and second flexible connecting means adapted to engage the frame and the like to be straightened and each being adjustably engaged with one of said arms; f. first and second power means on said body attached to said first and second flexible means respectively for applying a force thereto tending to straighten a frame and the like to which the flexible means are engaged, each said flexible means extending from said associated power means on said body through said associated hollow arm over said pulley means; and g. said arms each having a longitudinally extending partition mounted between the side walls thereof forming a first channel adjacent said inner arcuate wall and a second channel adjacent said outer arcuate wall, second pulley means mounted at an outer end of each arm in said second channel, further power means mounted in each of said second channels, and further flexible frame engagable connecting means in each said second channel engaging said further power means and second pulley means therein.
Claim 2
Dependent Claim 353 words
A mobile frame and body straightener comprising: a. a body adapted for movement over a supporting surface and having a longitudinal, generally horizontal axis; b. two transversely extending arms affixed to said body in juxtaposition for independent pivotal movements about first axes approximately parallel with the longitudinal axis of said body and for pivotal movements about second axes transverse to said first axes, respectively; c. means affixed to said arms and said body for positioning and maintaining said arms in a desired orientation about said first axes relative to each other and to said body, each of said arms being generally arcuately shaped with the arc extending toward a frame and the like to be straightened, said arms each being hollow and each having inner and outer arcuate walls connected by side walls, said inner arcuate walls each having a longitudinally extending opening therein with pulley means adjustably mounted in said opening; do means adjustably affixed to said body for engaging a frame and the like to be straightened and maintaining said body substantially fixedly positioned relative to said engaged frame and the like; e. first and second flexible connecting means adapted to engage the frame and the like to be straightened and each being adjustably engaged with one of said arms; f. first and second power means on said body attached to said first and second flexible means respectively for applying a force thereto tending to straighten a frame and the like to which the flexible means are engaged, each said flexible means extending from said associated power means on said body through said associated hollow arm over said pulley means; and g. said arms each having a longitudinally extending partition mounted between the side walls thereof forming a first channel adjacent said inner arcuate wall and a second channel adjacent said outer arcuate wall, second pulley means mounted at an outer end of each arm in said second channel, further power means mounted in each of said second channels, and further flexible frame engagable connecting means in each said second channel engaging said further power means and second pulley means therein.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-09-19 1976-03-20 1976-09-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-09-19 1980-03-20 1980-09-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-09-19 1984-03-20 1984-09-19 $7700.00 Window Closed / Lapsed

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