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:
Apr. 10, 1984
Filed:
Feb. 05, 1982
Masahumi Minami, Sakai, JP;
Miyawaki Steam Trap Mfg. Co., Ltd., Osaka, JP;
Abstract
A steam trap includes a casing having an inlet and an outlet, a cover secured to the casing to enclose a condensate reservoir in the casing and a trap unit having a valve closing and opening by thermal expansion and contraction of a thermoelement such as thermowax in response to temperature in the reservoir and a counter spring whose spring force acts against the thermal expansion of the thermoelement. The disclosed steam trap comprises connection means for connecting the cover and the trap unit only by relative movement therebetween and a support spring arranged between the cover and the thermoelement. The steam trap is therefore, conveniently adaptable to change in used conditions by suitable selection of trap units having various temperature characteristics previously prepared and is capable of effectively replacing its trap unit with a new one for repairing.