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:
May. 07, 1985
Filed:
Dec. 30, 1982
Losenhausen Machinenbau AG, Dusseldorf, DE;
Abstract
An unbalance vibrator having a shaft 2, with a flyweight 3 rigidly connected thereto, which shaft 2 is mounted in a bearing housing 1, comprises on both sides of this connecting flyweight movable flyweights 5 with flyweight bodies 6 nearly semicircular in cross section and guiding rings 7 nearly semicircular in cross section. The shaft 2 comprises a radial bore on diametrically opposite sides, into which a dog 8 is screwed, and a blind bore 11, into which a locking member 12 is retracted by action of a spring 17. The radial bore 3 and the blind bore 11 are angularly spaced by 90.degree. with respect to the center plane of the flyweight 3 rigidly connected. When the shaft 2 is rotating, the locking member 12 extends from the blind bore 11, such that the movable flyweights 5 are held between the dogs 8 and the locking members 12. The locking members 12 are subjected to hysteresis and are retracted at a rotary speed, which is lower than the loading rotary speed.