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:
Jan. 31, 2012
Filed:
Feb. 17, 2006
Harald Schliemann, Waiblingen, DE;
Manfred Rabis, Schwaikheim, DE;
Harald Schliemann, Waiblingen, DE;
Manfred Rabis, Schwaikheim, DE;
Andreas Stihl AG & Co. KG, Waiblingen, DE;
Abstract
A portable handheld suction/blower apparatus includes a motor-driven blower () and at least one air guide tube () connected to the blower () at a connecting location () to conduct flow. The connecting location () is configured at least as a double-winding connection () which has pairs of outer thread sections () of an outer winding () and inner thread sections () of an inner winding (). The pairs are distributed about the periphery of the threaded connection. The periphery of the connecting location () is subdivided by the number of pairs of thread sections () into a corresponding number of angular segments (). The sum of angular extents (α, β) of a pair of individual thread sections () is in total less than an angular extent (γ) of the corresponding angular segment ().