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US2787560A Expired / Lapsed US ⏱️ 0.0 years remaining

Microwave resistor manufacture

Assignee: Stoddart Aircraft Radio Co Inc
•
Filing: 1955-03-03
•
Granted: 1957-04-02
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Expires: 1975-03-03
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Abstract

No abstract record available.

Inventors

  • 👤 James W Shaw

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 13:48
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/065

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 115 words
THE PROCESS OF CONSTRUCTING AN ELECTRICAL RESISTOR HAVING ESSENTIALLY EXCLUSIVELY RESISTIVE INPEDANCE THROUGH MICROWAVE FREQUENCIES COMPRISING THE STEPS OF PROVIDING A NON-CONDUCIVE HEAT-RESISTANT CARRIER, PROVIDING A DECOMPOSABLE QUASI-LIQUID COMPOUND OF A NOBLE METAL RESINATE, REVOLVING SAID CARRIER WHILE COATING THE SAME WITH SAID RESINATE, REVOLVING SAID CARRIER FOR A FIXED TIME INTERVAL AT A SPEED SUFFICIENTLY HIGH TO THROW OFF A MAJOR PORTION OF SAID RESINATE BY CENTRIFUGAL FORCE, SOLIDIFYING SAID RESINATE BY DRYING, AND FIRING THE COATED CARRIER AT A TEMPERATURE SUFFICIENTLY HIGH TO DECOMPOSE SAID RESINATE TO A UNIFORM THIN FILM OF METAL HAVING ESSENTIALLY EXCLUSIVELY RESISTIVE IMPEDANCE UPON SAID CARRIER PROPORTIONATE IN THICKNESS TO THAT OF THE RESINATE DETERMINED BY CENTRIFUGAL FORCE.
Claim 2
Dependent Claim 115 words
THE PROCESS OF CONSTRUCTING AN ELECTRICAL RESISTOR HAVING ESSENTIALLY EXCLUSIVELY RESISTIVE INPEDANCE THROUGH MICROWAVE FREQUENCIES COMPRISING THE STEPS OF PROVIDING A NON-CONDUCIVE HEAT-RESISTANT CARRIER, PROVIDING A DECOMPOSABLE QUASI-LIQUID COMPOUND OF A NOBLE METAL RESINATE, REVOLVING SAID CARRIER WHILE COATING THE SAME WITH SAID RESINATE, REVOLVING SAID CARRIER FOR A FIXED TIME INTERVAL AT A SPEED SUFFICIENTLY HIGH TO THROW OFF A MAJOR PORTION OF SAID RESINATE BY CENTRIFUGAL FORCE, SOLIDIFYING SAID RESINATE BY DRYING, AND FIRING THE COATED CARRIER AT A TEMPERATURE SUFFICIENTLY HIGH TO DECOMPOSE SAID RESINATE TO A UNIFORM THIN FILM OF METAL HAVING ESSENTIALLY EXCLUSIVELY RESISTIVE IMPEDANCE UPON SAID CARRIER PROPORTIONATE IN THICKNESS TO THAT OF THE RESINATE DETERMINED BY CENTRIFUGAL FORCE.
Claim 3
Dependent Claim 162 words
A MACHINE FOR COATING AN INSULATED CARRIER WITH RESISTTIVE COMPOUND FOR FORMING A MICROWAVE ELECTRICAL RESISTOR COMPRISING A HOUSING, AN ADJUSTABLE SPEED MOTOR HAVING A HORIZONTAL SHAFT WITHIN SAID HOUSING, SAID SHAFT EXTENDING WITHOUT SAID HOUSING, MEANS UPON SAID SHAFT FOR HOLDING SAID CARRIER, MEANS TO COAT SAID CARRIER WITH SAID COMPOUND, AN ELECTRIC POWER SOURCE OF ADJUSTABLE VOLTAGE, A FIRST SWITHCH FOR IMPRESSING A LOW VOLTAGE UPON SAID MOTOR TO OPERATE THE SAME AT A LOW SPEED, A TIME INTERVAL TIMER, SAID ABOVE-RECITED ELECTRICAL MEANS WITHIN SAID HOUSING, A SHIELD ATTACHED TO SAID HOUSING SURROUNDING SAID SHAFT, SAID SHIELD HAVING A HINGED CLOSURE PORTION, A SECOND SWITHCH POSITIONED FOR ACTUATION BY SAID CLOSURE PORTION WHEN CLOSED, ACTUATION OF SAID SECOND SWITCH STARTING THE TIME INTERVAL OF SAID TIMER, SAID THUS ACTUATED TIMER ADAPTED TO IMPRESS A HIGH VOLTAGE UPON SAID MOTOR AND UPON TERMINATION OF SAID TIME INTERVAL SAID THUS ACTUATED TIMER ADAPTED TO REMOVE SAID HIGH VOLTAGE FROM SAID MOTOR.
Claim 4
Dependent Claim 162 words
A MACHINE FOR COATING AN INSULATED CARRIER WITH RESISTTIVE COMPOUND FOR FORMING A MICROWAVE ELECTRICAL RESISTOR COMPRISING A HOUSING, AN ADJUSTABLE SPEED MOTOR HAVING A HORIZONTAL SHAFT WITHIN SAID HOUSING, SAID SHAFT EXTENDING WITHOUT SAID HOUSING, MEANS UPON SAID SHAFT FOR HOLDING SAID CARRIER, MEANS TO COAT SAID CARRIER WITH SAID COMPOUND, AN ELECTRIC POWER SOURCE OF ADJUSTABLE VOLTAGE, A FIRST SWITHCH FOR IMPRESSING A LOW VOLTAGE UPON SAID MOTOR TO OPERATE THE SAME AT A LOW SPEED, A TIME INTERVAL TIMER, SAID ABOVE-RECITED ELECTRICAL MEANS WITHIN SAID HOUSING, A SHIELD ATTACHED TO SAID HOUSING SURROUNDING SAID SHAFT, SAID SHIELD HAVING A HINGED CLOSURE PORTION, A SECOND SWITHCH POSITIONED FOR ACTUATION BY SAID CLOSURE PORTION WHEN CLOSED, ACTUATION OF SAID SECOND SWITCH STARTING THE TIME INTERVAL OF SAID TIMER, SAID THUS ACTUATED TIMER ADAPTED TO IMPRESS A HIGH VOLTAGE UPON SAID MOTOR AND UPON TERMINATION OF SAID TIME INTERVAL SAID THUS ACTUATED TIMER ADAPTED TO REMOVE SAID HIGH VOLTAGE FROM SAID MOTOR.

References Cited (Backward Citations)

US2740928A Cited
US2172326A Cited
US2303774A Cited
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US2345122A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-04-01 1960-10-01 1961-04-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-04-01 1964-10-01 1965-04-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-04-01 1968-10-01 1969-04-02 $7700.00 Window Closed / Lapsed

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