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. 07, 2024
Filed:
May. 07, 2018
Ehc Canada, Inc., Oshawa, CA;
Qingping Guo, Scarborough, CA;
Andrew Oliver Kenny, Toronto, CA;
Reginald Anthony Butwell, Young's Point, CA;
James Ryan Sabadin, Newcastle, CA;
Jason Wong, Ajax, CA;
Hani E. Naguib, Toronto, CA;
Wanqiao Wang, Toronto, CA;
Linghong Li, Toronto, CA;
Ali Owais Anwer, Toronto, CA;
Muhammad Abdul Samad Anwer, Toronto, CA;
EHC CANADA, INC., Oshawa, CA;
Abstract
In a handrail including a carcass, a stretch inhibitor within the carcass, and a sliding layer bonded to the carcass, at least a portion of the carcass has a gas phase dispersed in a solid polymer matrix. The gas phase can reduce a density of the carcass by at least 5% or 10%, or about 15%, as compared to a density of the polymer matrix. The carcass can have a generally uniform distribution of gas bubbles in the polymer matrix, which can define a generally closed cell structure in the polymer matrix. The gas phase can be formed of particles of a syntactic foam dispersed in the polymer matrix. The handrail can further include a cover. The carcass and the cover can be formed of thermoplastic materials, and the cover can represent between 10 and 30% of the overall TPU required for the handrail.