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:
Jun. 24, 2014
Filed:
Jul. 19, 2012
Ying-che Huang, Changhua County, TW;
Chun-ming Huang, Changhua County, TW;
Ying-Che Huang, Changhua County, TW;
Chun-Ming Huang, Changhua County, TW;
Other;
Abstract
A valve assembly includes a rotary nut unit having a threaded wall portion, a first wall portion near the threaded wall portion and defining a first shoulder, a second wall portion below the first wall portion and defining a second shoulder. A valve stem is disposed within the nut unit, has a lower portion projecting axially and outwardly from the lower end of the nut unit and an upper portion received in the second shoulder. The stem has an axial hole in spatial communication with an axial hole in the nut unit. The upper portion has a head part formed with first and second outward flanges defining a ring-reception recess therebetween. A leak-proof ring is sleeved around the ring-reception recess in the head part to abut hermetically against the second wall portion, thereby providing an air-proof effect between the leak-proof ring and the second wall portion.