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:
Apr. 19, 2011
Filed:
Feb. 17, 2005
Mats Hedman, Sparreholm, SE;
Mats Hedman, Sparreholm, SE;
Cargine Engineering AB, Stockholm, SE;
Abstract
A pressure pulse generator, including a pressure pulse transmitting body, a chamber, divided into a first and a second part, a first conduit that leads between a high pressure source and the first part of the chamber, a second conduit that leads between a low pressure source and the second part of the chamber, the body being displaceably arranged in the second part of the chamber and being in contact with a pressure fluid in the chamber, and with the environment and being spring loaded in a direction towards the chamber. The pressure pulse generator includes elements for opening/interrupting the communication between the first part of the chamber and the high pressure source, and elements for opening/interrupting the communication between the second part of the chamber and the low pressure source, and an operable valve body for opening/interrupting the communication between the first and second parts of the chamber.