Thermal measuring and testing – Temperature measurement – Mechanical
Patent
1981-07-15
1983-08-02
Yasich, Daniel M.
Thermal measuring and testing
Temperature measurement
Mechanical
235 92MT, 337205, 337322, 364557, 374206, 377 25, G01K 300, G01K 550, G01K 536
Patent
active
043963013
ABSTRACT:
A system for sensing or detecting changes in and accumulating data relating to variable quantities or conditions, for example temperature, is disclosed. In one instance, the system sensor is a mercury tube thermometer modified with conductors or contacts embedded in the glass walls of the mercury tube. As the temperature rises, the conductive material rises and performs a switching function with the embedded contacts closing an electrical circuit to which the contacts are connected. The circuit components include plurality of logic gates the inputs of which are connected to the switching contacts in a manner such that their outputs are singularly true in a sequence corresponding to the direction of temperature change. In another instance the sensor is a bimetallic strip, coil or thermal Bourdon tube and an arm or pointer needle mounted on an end of the strip or tube rotates in response to changes in the temperature being sensed. A permanent magnet on the end of the arm, opens or closes, in a sequence corresponding to the direction of change in temperature, magnetic reed switches positioned along the path of the moving magnet. The switch closings and openings provide input binary signals to the logic devices connected thereto, the outputs of which when connected to a suitable register or up-down counter result in the transmission of accumulated data stored therein.
REFERENCES:
patent: 682084 (1901-09-01), Jobson
patent: 2018220 (1935-10-01), Morrison
patent: 2356612 (1944-08-01), Pfaff et al.
patent: 2626755 (1953-01-01), Tidd
patent: 2680222 (1953-06-01), Schwieg
patent: 3187131 (1965-06-01), Blase
patent: 3505872 (1970-04-01), Marlof
patent: 3623051 (1971-11-01), Juno et al.
patent: 3656078 (1972-04-01), Domenico
patent: 3656082 (1972-04-01), Beck
patent: 3724534 (1973-04-01), Weatherston
patent: 3786211 (1974-01-01), Popp
patent: 3859651 (1975-01-01), Thomas, Jr.
patent: 3875800 (1975-04-01), Stockton
patent: 3947692 (1976-03-01), Payne
patent: 4061901 (1977-12-01), Saunders et al.
patent: 4112764 (1978-09-01), Turner
patent: 4160573 (1979-04-01), Iinuma et al.
patent: 4181957 (1980-01-01), Pinckaers
patent: 4214152 (1980-07-01), Hess
patent: 4292840 (1981-10-01), Nguyan
patent: 4298947 (1981-11-01), Tamura et al.
Brennan Thomas W.
Thiokol Corporation
White Gerald K.
Yasich Daniel M.
LandOfFree
Sensing device for detecting changes in variable quantities does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sensing device for detecting changes in variable quantities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensing device for detecting changes in variable quantities will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-481472