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:
Sep. 28, 2010
Filed:
Sep. 08, 2004
Jonathan DE Wet, North Vancouver, CA;
Ron C. Y. Hui, Burnaby, CA;
Douglas Robert Mckay, Burnaby, CA;
Zdravko Zdjelar, Coquitlam, CA;
Robert J. Harris, Stoke-on-Trent, GB;
Jonathan de Wet, North Vancouver, CA;
Ron C. Y. Hui, Burnaby, CA;
Douglas Robert McKay, Burnaby, CA;
Zdravko Zdjelar, Coquitlam, CA;
Robert J. Harris, Stoke-on-Trent, GB;
Kelsan Technologies Corp., North Vancouver, CA;
Abstract
A solid composition stick applicator is provided. The applicator comprises an applicator body having a first and second end, the second end having an opening through which a solid composition stick is dispensed. Within the applicator is housed a helical tension spring having a first spring end and a second spring end, the first spring end, second spring end, or both the first and second spring end held at a fixed position with respect to the applicator body. The helical tension spring is wound around a guide system that is housed within the applicator body. A pushing assembly is attached to the helical tension spring and the pushing assembly is movable from a first position at or near the first end of the applicator body, to a second position at or near the second end of the applicator body. Tension within the helical tension spring is greater in the first position than in the second position thereby urging the pushing assembly towards the second end of the applicator body. The use of a helical tension spring within the applicator greatly increases the life of the applicator under field conditions.