The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2025
Filed:
Nov. 11, 2021
Nippon Thermostat Co., Ltd., Kiyose, JP;
Tetsuya Nishimura, Kiyose, JP;
Masayuki Numata, Kiyose, JP;
NIPPON THERMOSTAT CO., LTD., Kiyose, JP;
Abstract
Provided are a thermostat device and a method for manufacturing the same, capable of minimizing an increase in size of the thermostat device, and where a seal member is easily assembled and cost can be minimized. This thermostat device includes a housing, attached to a mounting hole of a counterpart member, that has a flow path for a coolant formed therein, a seal member that creates a liquid-tight seal between the counterpart member and the housing, a thermo-element that expands and contracts in accordance with the coolant temperature, a valve body that opens and closes the flow path due to the expansion and contraction of the thermo-element, and a coil spring that biases the valve body in a closing direction, the housing having formed therein a deformed annular groove into which the seal member fits, and the seal member having a perfectly circular shape in a natural length state.