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:
Dec. 29, 2009
Filed:
Sep. 01, 2005
Georg Wagner, Bruchsal, DE;
Georg Wagner, Bruchsal, DE;
F. Von Langsdorff Licensing Ltd., Caledon, Ontario, CA;
Abstract
The invention relates to a tree grille system for covering tree grates. Said system consists of grille sections (), which are interconnected by couplings () to form a self-supporting tree grille. The couplings () consist of two fixed coupling parts () configured on the grille sections () and a coupling part () that can be inserted between the other parts and then rotated into a locking position. An arc-shaped rib () is configured on the underside of the fixed coupling parts (), the outer peripheral face () of said rib being configured as a ramp-type clamping surface (). One section of said surface () is provided with undulating fluting (). When the displaceable coupling part () is rotated into the locking position, teeth () that are formed on said part slide over the fluting (), causing the displaceable coupling part () to be locked by a friction and positive fit in the locking position. Inserts (), which can be introduced into two receiving holes () of the displaceable coupling part (), comprise a pin () that projects outwards and engages in one of several arched bores () of the fixed coupling parts (). This permits a more secure, positive-fit locking position to be achieved for the displaceable coupling part ().