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US3647046A Expired / Lapsed US ⏱️ 0.0 years remaining

Conveyor

Assignee: INDUSTRIES TANGUAY Inc
•
Filing: 1970-06-10
•
Granted: 1972-03-07
•
Expires: 1990-06-10
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Abstract

Abstract A conveyor, for tree stems, formed of a fixed section and of a section capable of pivoting upwardly about an axis transverse to the direction of travel of the tree stems. The fixed as well as the pivotable sections are provided with gripper rollers adapted to drive the tree stems in the conveyor.

Inventors

  • 👤 Jean-Paul Tanguay
  • 👤 Elie Dallaire

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 05:16
CPC Classifications
B; B65; B65G; B65G25/00; B65G25/04; B65G25/08

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 216 words
A generally horizontal conveyor for the conveying of tree stems or the like elongated elements, said conveyor having at least two fixed spaced conveying sections each provided with upright sidewalls and transverse powered driving members spaced from one another and mounted between said sidewalls, said driving rollers being adapted to contact said elongated articles to drive them into conveying motion, the improvement in the combination therewith comprising: a. one further conveying section disposed between said two fixed sections and formed of upright sidewalls and at least one powered driving roller for driving said elongated elements when said powered driving roller comes into contact with said elements; b. means mounting said further section for pivotal movement about a transverse axis lOcated at one end thereof, said further section being pivotable to and from a first position wherein it is in alignment with said fixed section to a second position wherein its end away from its pivoted end stands above said fixed sections whereby said powered driving roller of the adjacent pivotable section may come in contact with elongated articles that are partially curved in the longitudinal direction and would otherwise remain out of contact with said driving roller of said pivotable section, and c. power means to drive said pivotable section into pivoting motion between said positions.
Claim 2
Dependent Claim 216 words
A generally horizontal conveyor for the conveying of tree stems or the like elongated elements, said conveyor having at least two fixed spaced conveying sections each provided with upright sidewalls and transverse powered driving members spaced from one another and mounted between said sidewalls, said driving rollers being adapted to contact said elongated articles to drive them into conveying motion, the improvement in the combination therewith comprising: a. one further conveying section disposed between said two fixed sections and formed of upright sidewalls and at least one powered driving roller for driving said elongated elements when said powered driving roller comes into contact with said elements; b. means mounting said further section for pivotal movement about a transverse axis lOcated at one end thereof, said further section being pivotable to and from a first position wherein it is in alignment with said fixed section to a second position wherein its end away from its pivoted end stands above said fixed sections whereby said powered driving roller of the adjacent pivotable section may come in contact with elongated articles that are partially curved in the longitudinal direction and would otherwise remain out of contact with said driving roller of said pivotable section, and c. power means to drive said pivotable section into pivoting motion between said positions.
Claim 3
Dependent Claim 43 words
A conveyor as claimed in claim 1 including a base over which said sections are mounted; brackets projecting upwardly from said base at one end of said pivotable section and pivot means interconnecting said brackets and said one end of said pivotable section.
Claim 4
Dependent Claim 28 words
A conveyor as claimed in claim 2 wherein said driving means for pivoting said pivotable section are at the end of said pivotable section away from said brackets.
Claim 5
Dependent Claim 21 words
A conveyor as claimed in claim 3 wherein said driving means for said pivotable section are fluid motors, preferably hydraulic jacks.
Claim 6
Dependent Claim 69 words
A conveyor as claimed in claim 3 wherein there are at least two driving rollers in said pivotable section and there is provided a tree stem end-guiding ramp immediately forwardly of the first one of said driving members with respect to said pivot axis; said ramp being upwardly inclined in the direction of said first one of said rollers and terminating short of the top of said first roller.

References Cited (Backward Citations)

US3182785A Cited
US3500882A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-03-07 1975-09-06 1976-03-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-03-07 1979-09-06 1980-03-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-03-07 1983-09-06 1984-03-07 $7700.00 Window Closed / Lapsed

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