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:
Mar. 20, 2001
Filed:
Dec. 21, 1999
Andreas Menne, Meersburg, DE;
Wolfgang Merkle, Meersburg, DE;
Ferton Holding SA, Delemont, CH;
Abstract
An ejection device,for the high-pressure ejection of a liquid or a liquid containing solid particles, comprising a pressure chamber,to accommodate the liquid therein, which opens into an ejection opening,and is delimited by a working piston,. The working piston,is, upon application of an elastic impact on its end facing away from the pressure chamber,, capable of transmitting a compression wave which may displace the pressure chamber-facing end of the working piston,by a predetermined displacement stroke into the pressure chamber,so that the volume thereof is reduced. The reduction in volume of the pressure chamber,is signicantly smaller than the volume of the pressure chamber,. The ejection device,further comprises a drive member,capable of generating the elastic impact, and is designed such that the working piston,is progressively displaced into the pressure chamber,by the repeated application of elastic impacts, with the distance of each single displacement being defined by the predetermined displacement stroke. (FIG.,)