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. 23, 2006
Filed:
Jun. 30, 2004
Anders Urban Jansson, Älvsjö, SE;
Anders Urban Jansson, Älvsjö, SE;
Atlas Copco Tools AB, Nacka, SE;
Abstract
A throttle valve device for a pneumatic power tool comprises a casing () with an air inlet passage (), an air outlet passage (), a valve chamber () with a main valve seat () and a main valve element (), and a manually shiftable activating rod () which is sealingly guided in a lateral guide way () and arranged to engage and displace the main valve element () off the main seat (), wherein the activating rod () has a valve portion () for co-operation with a secondary valve seat () in the guide way () for controlling a bypass passage () extending between the inlet passage () and the outlet passage () such that the activation rod valve portion () is separated from the secondary valve seat () and opens up the bypass passage () before the activation rod () engages and displaces the main valve element () off the main seat () when operating the activation rod () in the opening direction.