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. 03, 2020
Filed:
Jun. 20, 2017
Applicant:
Bühler Motor Gmbh, Nuremberg, DE;
Inventor:
Harald Rausch, Fürth, DE;
Assignee:
BÜHLER MOTOR GMBH, Nuremberg, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/22 (2006.01); B29C 65/00 (2006.01); F04D 29/02 (2006.01); B29C 65/08 (2006.01); B29C 65/78 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
F04D 29/2222 (2013.01); B29C 65/08 (2013.01); B29C 66/112 (2013.01); B29C 66/116 (2013.01); B29C 66/301 (2013.01); B29C 66/30223 (2013.01); B29C 66/5344 (2013.01); B29C 66/54 (2013.01); B29C 66/73921 (2013.01); F04D 29/026 (2013.01); F04D 29/2227 (2013.01); B29C 65/7802 (2013.01); B29L 2031/7496 (2013.01); F05D 2230/239 (2013.01);
Abstract
A method for producing a centrifugal pump impeller having a base plate, which is a single piece with pump blades and a cover plate, which consists of a thermoplastic material, wherein contact areas are available, which are heated and melted by means of ultrasonic excitation and form a close bonded connection after cool-down. The objective of the invention is to ensure inherent stability with the individual parts and a simple and reliable pre-assembly as well as a fixed mechanical connection, wherein only a small amount of excitation energy is required, with a centrifugal pump impeller comprising a base plate and cover plate.