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:
Apr. 30, 1991
Filed:
Jun. 20, 1989
Stephen G McGonigal, Hemel Hempstead, GB;
Lindsay MacDonald, Buzzard, GB;
Crosfield Electronics Limited, London, GB;
Abstract
A manual position indicating device comprises a body portion (1) that can be moved by hand across a surface; and a support member (4) movably mounted to the body portion. The support member includes a graticule (13) and associated signal generating or detecting circuitry for interaction in use with position determining apparatus, whereby the relative positions of the graticule (13) and the body portion (1) are selected by suitably moving the support member and body portion relatively to one another. A cooperating ball (11) and notch system (10) is provided for locking the support member (4) relative to the body portion (1) in a number of different positions.