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:
Jun. 28, 2016
Filed:
Mar. 09, 2011
Applicants:
John Greaves, Hampshire, GB;
Martin Roberts-jones, Hampshire, GB;
Inventors:
John Greaves, Hampshire, GB;
Martin Roberts-Jones, Hampshire, GB;
Assignee:
KEE SAFETY LIMITED, Berkshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04F 11/06 (2006.01); E04D 13/12 (2006.01); E06C 1/34 (2006.01); E06C 1/39 (2006.01); E04F 11/104 (2006.01); E04F 11/025 (2006.01);
U.S. Cl.
CPC ...
E04F 11/06 (2013.01); E04D 13/12 (2013.01); E04F 11/0255 (2013.01); E04F 11/1041 (2013.01); E06C 1/345 (2013.01); E06C 1/39 (2013.01);
Abstract
A walkway assembly () for attachment to a support structure such as a roof of a building includes a primary support () for on-site attachment to the support structure, a plurality of tread modules () each attached relative to the primary support and moveable between a first position and a second position at which a part of each tread module is spaced further from the primary support than when at the first position, and at least one riser unit () for supporting the tread modules relative to the primary support in at least the second of the first and second positions.