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. 01, 1997
Filed:
Jun. 26, 1995
Tetsuji Suzuki, Utsunomiya, JP;
Nakanishi Dental Mfg. Co., Ltd., Tochigi-Ken, JP;
Abstract
A dental treatment device for forming a screw hole for embedment of an implant material by a tool attached to the dental treatment device contains a speed-reducing unit for decelerating rotation of an external electric motor and raising torque for transmitting rotation to the tool, and a clutch unit provided between the speed-reducing unit and the tool. The clutch unit contains a driving side clutch having a first indented surface on its forward side, a tool side clutch having a second indented surface on its rear side, and a spring for thrusting the driving side clutch towards the tool side clutch for axially mating the first indented surface and the second indented surface with each other.