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US3973636A Expired / Lapsed US ⏱️ 0.0 years remaining

Thermobalance

Assignee: Rigaku Denki Co Ltd
•
Filing: 1975-07-03
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Granted: 1976-08-10
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Expires: 1995-07-03
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Abstract

Abstract A thermobalance wherein fulcra are provided respectively at the tips of both arms in a main balance, auxiliary balances are suspended respectively on said fulcra, one arm of the above mentioned auxiliary balance is extended near to a vertical line passing through the fulcrum of the main balance and a sample and standard sample are suspended on the tips of the respective arms and are arranged in the same furnace. A thermobalance wherein a connecting rod of the same length as of an arm of a main balance is arranged in parallel with the above mentioned arm and is rotatably fitted to a point of intersection of a vertical line passing through the fulcrum of the main balance with said connecting rod and two vertically arranged auxiliary balances are rotatably fitted respectively to both ends of the arm of the main balance and both ends of the connecting rod so as to form a link mechanism, the above mentioned auxiliary balances are bent and a sample and standard sample fitted to their tips are arranged near the above mentioned vertical line and are contained in the same furnace.

Inventors

  • 👤 Hiroshi Uchida

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 15:06
CPC Classifications
G; G01; G01G; G01G1/00; G01G1/18; G01G1/42; G01G7/00; G01G7/02; G01G7/04

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 82 words
A thermobalance comprising a main balance provided with fulcra respectively at the tips of both arms, a pair of auxiliary balances suspended respectively on said fulcra, arms of said auxiliary balances extended near to a vertical line passing through the fulcrum of said main balance and fitted respectively with a sample container and standard sample container at the tips and balancing means provided respectively on the auxiliary balances, said sample container and standard sample container being parallelly placed within the same furnace.
Claim 2
Dependent Claim 82 words
A thermobalance comprising a main balance provided with fulcra respectively at the tips of both arms, a pair of auxiliary balances suspended respectively on said fulcra, arms of said auxiliary balances extended near to a vertical line passing through the fulcrum of said main balance and fitted respectively with a sample container and standard sample container at the tips and balancing means provided respectively on the auxiliary balances, said sample container and standard sample container being parallelly placed within the same furnace.
Claim 3
Dependent Claim 24 words
A thermobalance according to claim 1 wherein said auxiliary balance fitted with said sample container is further provided with an electric second balancing means.
Claim 4
Dependent Claim 30 words
A thermobalance according to claim 1 wherein said balancing means comprises a screw projecting out of the other arm of said auxiliary balance and a weight screwed to said screw.
Claim 5
Dependent Claim 56 words
A thermobalance according to claim 1 wherein said balancing means is a link mechanism consisting of the arm of the main balance, the other arm of the auxiliary balance and a connecting rod of the same length as of the main balance and rotatably fitted to the end of the other arm of the auxiliary balance.
Claim 6
Dependent Claim 39 words
A thermobalance according to claim 2 wherein said second balancing means comprises two sets of a pair of magnets and a coil of a differential transformer and the respective sets are electrically connected with each other through an amplifier.

References Cited (Backward Citations)

US2407513A Cited
US2754109A Cited
US3717210A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-08-10 1980-02-09 1980-08-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-08-10 1984-02-09 1984-08-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-08-10 1988-02-09 1988-08-10 $7700.00 Window Closed / Lapsed

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