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:
Mar. 09, 2021
Filed:
Nov. 07, 2017
Niftylift Limited, Milton Keynes, GB;
Thomas Cousins, Milton Keynes, GB;
Steven Redding, Milton Keynes, GB;
Matthew Newman, Royston, GB;
Charles Cooke, Royston, GB;
David Tegerdine, Royston, GB;
Ed Bean, Royston, GB;
NIFTYLIFT LIMITED, Milton Keynes, GB;
Abstract
A safety system for an elevating machine has a base part and an elevating part. The safety system includes sensor assemblies for sensing an electric or magnetic field, which are mounted on different parts of the elevating machine. A data processor is connected to receive sensor signals from the sensor assemblies. A memory stores data relating to numerous patterns of sensor signals associated with the interaction between the elevating machine and an electric or magnetic field. The data processor compares the received sensor signals with the stored data and identifies the positional relationship between the elevating machine and a source of the sensed field.