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. 30, 2021
Filed:
Oct. 31, 2013
Husqvarna Ab, Huskvarna, SE;
Johan Hallendorff, Jönköping, SE;
Joakim Persson, Skillingaryd, SE;
Jonas Ingemarsson, Stockholm, SE;
Jonatan Gunér, Huskvarna, SE;
Husqvarna AB, Huskvarna, SE;
Abstract
A chainsaw () includes a power unit, a bar (), a chain () operably coupled to the bar () to rotate around the bar () responsive to drive power from the power unit, an oil pump operably coupled to the power unit to deliver oil to the chain (), and an oilreservoir () configured to hold oil for delivery to the chain () via the oil pump. The oil reservoir () may include a main chamber () to receive the oil and an air chamber (). The air chamber () may be formed adjacent to and distinct from the main chamber (). The air chamber () is configured to define a space for an air pocket.