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:
Dec. 13, 1994
Filed:
May. 04, 1994
Katsunobu Hagiwara, Kobe, JP;
Tsuyoshi Miyoshi, Kobe, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Abstract
An internal mixer has two rotors operated at either the same speed or different speeds. In two communicating cylindrical closed spaces which are round in cross section, two rotors connected with two output shafts of a speed reducer are juxtaposed in a non-engaged state, to transmit the driving power from the prime mover to the speed reducer, thus turning the two rotors in opposite directions. In this internal mixer, the two rotors are usable both at the same speed and at different speeds because of the use of the speed reducer having two output shafts whose speed of revolution is changeable between the same speed and different speeds. In one embodiment, the speeds of revolution of the output shafts are changed by a slidable clutch and in another embodiment, the speeds of revolution are changed by a movable stepped gear.