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:
Aug. 22, 2017
Filed:
Nov. 10, 2016
Jahwa Electronics Co., Ltd., Chungcheongbuk-do, KR;
Nam Jin Choi, Chungcheongbuk-do, KR;
Kyung Hoon Jo, Chungcheongbuk-do, KR;
Soon Koo Shim, Chungcheongbuk-do, KR;
Young Bin Chong, Chungcheongbuk-do, KR;
Won Gook Lee, Chungcheongbuk-do, KR;
Min Goo Lee, Chungcheongbuk-do, KR;
JAHWA electronics Co., Ltd., Cheongju-si, KR;
Abstract
Disclosed is an apparatus for generating linear vibration with a damper, which includes a housing having an inner space formed therein, a fixed body provided in the inner space and having a coil, a vibrating body having a magnet and a weight coaxially disposed with the coil and configured to move in a vertical direction on the basis of the fixed body, an elastic body configured to elastically support the vibrating body, a viscous fluid provided at an upper surface of the magnet and having viscosity, and a damper installed in the housing to face an upper surface of the vibrating body and configured to make a surface contact with the viscous fluid when the vibrating body moves upwards, the damper having a shape not making a surface contact with the entire viscous fluid simultaneously.