Automatic temperature and humidity regulation – Snap-acting – Including a permanent magnet
Patent
1980-05-23
1982-03-30
Tapolcai, Jr., William E.
Automatic temperature and humidity regulation
Snap-acting
Including a permanent magnet
236 87, 236101C, G05D 2310
Patent
active
043220320
ABSTRACT:
The thermally responsive valve device is comprised of a body having three passages therein, the first of which is adapted to be conected to a vacuum source while the second and third passages are each adapted to be connected to a suitable fluid operated device. The first passage is in constant fluid communication with two spaced apart fluid chambers within the body while the second and third passages are in selective communication with said chambers respectively. A valve member is located in each chamber for controlling communication of the second and third passages with their respective chambers. A pair of snapacting bimetallic disks are mounted in spaced relation within a third chamber in alignment with each other and each valve member. An operating rod is disposed in operative engagement between one of said disks and one of said valve members and a hollow tubular sleeve concentric with said rod is disposed in operative engagement between the other of said disk and the other of said valve members. A spring is operatively associated with each valve member for biasing the respective valve member toward said bimetallic disk to allow communication between said first passage and said second and third passages.
REFERENCES:
patent: 4032068 (1977-06-01), Luchtenberg et al.
patent: 4117976 (1978-10-01), Doherty, Jr.
patent: 4144998 (1979-03-01), Wakabayashi et al.
patent: 4182485 (1980-01-01), Kitamura
patent: 4239152 (1980-12-01), Kitamura et al.
Hashimoto Nobuyuki
Satomoto Atsushi
Aisin Seiki Kabushiki Kaisha
Tapolcai, Jr. William E.
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