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:
Oct. 07, 2003
Filed:
May. 07, 2002
Ralph Lipsey Barnett, Wilmette, IL (US);
Triodyne Safety Systems, L.L.C., Niles, IL (US);
Abstract
A non-self-supporting ladder having an anti-slide-out device which enables a user to set up the ladder at the specified minimum ladder set-up angle (&thgr;) or greater angles for precluding the base of the ladder from sliding away from a structure against which the ladder is leaning upon application of a weight on the ladder, but prevents the ladder to be set up at angles smaller than (&thgr;). The device includes an inboard roller assembly having a bracket connected to each side rail of the ladder and a roller connected to each bracket oriented and disposed so as to impose a specified ladder inclination angle (&thgr;), when the lower end of the ladder and the rollers simultaneously rest on a substantially flat horizontal surface. At set-up angles smaller than the specified minimum angle (&thgr;), only the rollers rest on the horizontal surface, preventing the ladder from being set up.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile