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. 31, 1977
Filed:
Nov. 04, 1974
John W Bedenbender, Plano, TX (US);
Gilbert H Kelly, Irving, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A gyroscopic vibrator provides a new vibrational energy source for applications such as reflection seismology and shake tables. A gyroscopic mass is rotated at a high angular velocity about a shaft. A control force imparts an oscillatory angular displacement to the shaft, preferrably in a plane perpendicular to the vector direction of the desired vibratory source. The resultant gyroscopic reactionary moment in the shaft includes a force component in the direction of the desired vibratory force. One end of the shaft is constrained by a reaction mass while the other end of the shaft is mechanically coupled to the mass which is to be excited. The resultant excitational forces are substantially greater than the controlled force required to impart the angular displacement to the shaft.