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US4213446A Expired / Lapsed US ⏱️ 0.0 years remaining

Stove door operator

Assignee: Individual
•
Filing: 1978-11-24
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Granted: 1980-07-22
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Expires: 1998-11-24
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Abstract

Abstract A stove for burning combustible materials having a fire box at least in part lined with a fire resistant lining and having an opening across a front surface thereof, said opening defined by a hearth and an upper lip and equipped with pivotally mounted door means mounted for rotation within the stove along horizontally disposed axes so that the opening can be effectively closed by rotation of the upper and lower doors into their closed position. The hearth may be equipped with an upstanding transparent panel to permit viewing of the fire when the doors are open. Access to the fire box for insertion of additional flammable materials is provided by a door means positioned at the end of said fire box. Protection for the transparent panel to prevent logs from rolling against it may be provided by elongated means extending across the front opening at or above the rearward portion of the hearth.

Inventors

  • 👤 Gary K. Stookey
  • 👤 James F. Jackson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 07:50
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/02; F24B13/00; F24B13/004; F24C; F24C15/00; F24C15/02; F24C15/04

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 193 words
A stove, comprising metallic wall means forming a fire box, said wall means having outlet means for the products of combustion from said fire box; means forming a non-conductive liner for at least the bottom portion of said fire box said fire box having an elongated front opening defined by a horizontally disposed hearth means, an overhanging lip parallel thereto, and upright end walls, all projecting forwardly of said fire box; an upper and a lower closable door pivot-mounted at said front opening to pivot about parallel horizontal axes between open and closed positions; common ends of said upper and lower pivot-mounts outwardly extending through a common end wall of said fire box; a crank arm secured external of said fire box to said outwardly extending pivot mounts; a manually operable actuator lever pivotally mounted on said fire box end wall between said crank arms; and a pair of links mutually connected at common ends to said lever and at each opposite end to a crank arm whereby operation of said lever either disposes said doors in a parallel open position or swings said doors to substantial alignment to close said front opening.
Claim 2
Dependent Claim 193 words
A stove, comprising metallic wall means forming a fire box, said wall means having outlet means for the products of combustion from said fire box; means forming a non-conductive liner for at least the bottom portion of said fire box said fire box having an elongated front opening defined by a horizontally disposed hearth means, an overhanging lip parallel thereto, and upright end walls, all projecting forwardly of said fire box; an upper and a lower closable door pivot-mounted at said front opening to pivot about parallel horizontal axes between open and closed positions; common ends of said upper and lower pivot-mounts outwardly extending through a common end wall of said fire box; a crank arm secured external of said fire box to said outwardly extending pivot mounts; a manually operable actuator lever pivotally mounted on said fire box end wall between said crank arms; and a pair of links mutually connected at common ends to said lever and at each opposite end to a crank arm whereby operation of said lever either disposes said doors in a parallel open position or swings said doors to substantial alignment to close said front opening.

References Cited (Backward Citations)

US268066A Cited
US2540657A Cited
US1128364A Cited
US2479773A Cited
US3426507A Cited
US4092976A Cited
US4136662A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-07-22 1984-01-21 1984-07-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-07-22 1988-01-21 1988-07-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-07-22 1992-01-21 1992-07-22 $7700.00 Window Closed / Lapsed

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