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:
Nov. 22, 2016
Filed:
Mar. 04, 2014
Bruker Biospin Ag, Faellanden, CH;
Daniel Guy Baumann, Faellanden, CH;
Bruker BioSpin AG, Faellenden, CH;
Abstract
An NMR probe head has a capacitor with a dielectric (), which surrounds a cavity () in which a capacitor piston () is disposed. A sliding bush () has a through hole () in which a piston operating rod () extends. The piston operating rod () is connected to a piezo-electric actuator and to the capacitor piston () in such a way that it displaces the capacitor piston linearly when a sawtooth voltage is applied to the piezo-electric actuator. The sliding bush thereby applies braking friction to the piston operating rod during linear displacement of the capacitor piston and only allows the piston operating rod to slide through during the steep edges of the sawtooth voltage. This avoids the disadvantages of prior art, wherein the NMR probe head remains compact and the material cost and manufacturing complexity are reduced.