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US3225681A Expired / Lapsed US ⏱️ 0.0 years remaining

Lift mechanism for deep fat fryers

Assignee: Wells Vehicle Electronics LP
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Filing: 1960-03-21
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Granted: 1965-12-28
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Expires: 1980-03-21
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Abstract

No abstract record available.

Inventors

  • 👤 George F Wells

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 20:40
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/12; A47J37/1219

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 360 words
AN AUTOMATIC COOKING MACHINE COMPRISING A HOUSING HAVIN A WELL IN THE TOP THEREOF, A COOKING TANK REMOVABLY MOUNTED IN SAID WELL, AN ELECTRICAL HEATING ELEMENT DISPOSED IN THE BOTTOM OF SAID TANK, A FORMAINOUS BASKET REMOVABLY DISPOSED IN SAID TANK, AND MEANS FOR AUTOMATICALLY LOWERING SAID BASKET INTO SAID TANK AND RAISING SAID BASKET OUT OF SAID TANK COMPRISING A FRAME IN SAID HOUSING SLIDBLE ALONG A GENERALLY VERTICAL PATH ADJACENT ONE SIDE OF SAID TANK AND EXTENDING ABOVE THE TOP OF SAID TANK, MEANS FOR SUPPORTING SAID BAKSET ON SAID FRAME, A UNIDIRECTIONAL ELECTRIC MOTOR, CONNECTING MEANS CONNECTING SAID FRAME TO SAID ELECTRIC MOTOR AND OPERATIVE TO RECIPROCATE SAID FRAME ALONG SAID PATH WHEN SAID MOTOR IS ENERGIZED, A FIRST ELECTRICAL CONDUCTOR ADAPTED TO BE CONNECTED TO A POWER SOURCE, A NORMALLY CLOSED LIMIT SWITHC IN SAID FIRST CONDUCTOR POSITIONED TO BE OPENED WHEN SAID FRAME IS NEAR THE BOTTOM OF ITS VERTICAL PATH, A SECOND ELECTRICAL CONDUCTOR ADAPTED TO BE CONNECTED TO SAID POWER SOURCE, A NORMALLY CLOSED LIMIT SWITCH IN SID SECOND CONDUCTOR POSITIONED TO BE OPENED WHEN SAID FRAME IS NEAR THE TOP OF SAID PATH, MEANS FOR CONNECTING ONE TERMINAL OF SAID MOTOR TO A SOURCE OF ELECTRICAL POWER, AND A TIMING SWITCH ADAPTED TO CONNECT SAID FIRST AND SECOND CONDUCTOR ALTERNATELY TO THE OTHER TERMINAL OF SAID MOTOR, SAID TIMING SWITCH NORMALLY CONNECTING SAID SECOND CONDUCTOR TO SAID TERMINAL BUT OPERATIVE TO CONNECT SAID FIRST CONDUCTOR ALSAID TERMINAL FOR A PREDETERMINED PERIOD OF TIME, SAID FRAME COMPRISING TWO RODS RODS SLIDABLY MOUNTED IN SAID HOUSING ALONG PARALLEL GENERALLY VERTICAL PATHS ADJACENT TO THE SIDE OF SAID TANK AND EXTENDING ABOVE THE TOP OF SAID HOUSING, A CROSS-PIECE CONNECTING THE TOPS OF SAID RODS AND EXTENDING DOWNWARDLY THEREFROM TOWARD SAID TANK, AND A CROSS BAR CONNECTING A PORTION OF SAID RODS BELOW THE TOP OF SAID HOUSING, AND SAID MEANS FOR SUPPORTING SAID BASKET ON SAID FRAME COMPRISING A HOOK EXTENDING FROM SAID BASKET AND ADAPTED TO ENGAGE SAID CROSS-PIECE, TWO GENERALLY VERTICALLY EXTENDING AM SURFACES ON SAID BASKET, AND A GENERALLY HORIZONTAL BEARING SURFACE IN SAID TANK POSITIONED TO CONTACT SAID CAM SURFACES.
Claim 2
Dependent Claim 360 words
AN AUTOMATIC COOKING MACHINE COMPRISING A HOUSING HAVIN A WELL IN THE TOP THEREOF, A COOKING TANK REMOVABLY MOUNTED IN SAID WELL, AN ELECTRICAL HEATING ELEMENT DISPOSED IN THE BOTTOM OF SAID TANK, A FORMAINOUS BASKET REMOVABLY DISPOSED IN SAID TANK, AND MEANS FOR AUTOMATICALLY LOWERING SAID BASKET INTO SAID TANK AND RAISING SAID BASKET OUT OF SAID TANK COMPRISING A FRAME IN SAID HOUSING SLIDBLE ALONG A GENERALLY VERTICAL PATH ADJACENT ONE SIDE OF SAID TANK AND EXTENDING ABOVE THE TOP OF SAID TANK, MEANS FOR SUPPORTING SAID BAKSET ON SAID FRAME, A UNIDIRECTIONAL ELECTRIC MOTOR, CONNECTING MEANS CONNECTING SAID FRAME TO SAID ELECTRIC MOTOR AND OPERATIVE TO RECIPROCATE SAID FRAME ALONG SAID PATH WHEN SAID MOTOR IS ENERGIZED, A FIRST ELECTRICAL CONDUCTOR ADAPTED TO BE CONNECTED TO A POWER SOURCE, A NORMALLY CLOSED LIMIT SWITHC IN SAID FIRST CONDUCTOR POSITIONED TO BE OPENED WHEN SAID FRAME IS NEAR THE BOTTOM OF ITS VERTICAL PATH, A SECOND ELECTRICAL CONDUCTOR ADAPTED TO BE CONNECTED TO SAID POWER SOURCE, A NORMALLY CLOSED LIMIT SWITCH IN SID SECOND CONDUCTOR POSITIONED TO BE OPENED WHEN SAID FRAME IS NEAR THE TOP OF SAID PATH, MEANS FOR CONNECTING ONE TERMINAL OF SAID MOTOR TO A SOURCE OF ELECTRICAL POWER, AND A TIMING SWITCH ADAPTED TO CONNECT SAID FIRST AND SECOND CONDUCTOR ALTERNATELY TO THE OTHER TERMINAL OF SAID MOTOR, SAID TIMING SWITCH NORMALLY CONNECTING SAID SECOND CONDUCTOR TO SAID TERMINAL BUT OPERATIVE TO CONNECT SAID FIRST CONDUCTOR ALSAID TERMINAL FOR A PREDETERMINED PERIOD OF TIME, SAID FRAME COMPRISING TWO RODS RODS SLIDABLY MOUNTED IN SAID HOUSING ALONG PARALLEL GENERALLY VERTICAL PATHS ADJACENT TO THE SIDE OF SAID TANK AND EXTENDING ABOVE THE TOP OF SAID HOUSING, A CROSS-PIECE CONNECTING THE TOPS OF SAID RODS AND EXTENDING DOWNWARDLY THEREFROM TOWARD SAID TANK, AND A CROSS BAR CONNECTING A PORTION OF SAID RODS BELOW THE TOP OF SAID HOUSING, AND SAID MEANS FOR SUPPORTING SAID BASKET ON SAID FRAME COMPRISING A HOOK EXTENDING FROM SAID BASKET AND ADAPTED TO ENGAGE SAID CROSS-PIECE, TWO GENERALLY VERTICALLY EXTENDING AM SURFACES ON SAID BASKET, AND A GENERALLY HORIZONTAL BEARING SURFACE IN SAID TANK POSITIONED TO CONTACT SAID CAM SURFACES.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-12-27 1969-06-28 1969-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-12-27 1973-06-28 1973-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-12-27 1977-06-28 1977-12-28 $7700.00 Window Closed / Lapsed

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