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:
Aug. 08, 1995
Filed:
May. 04, 1994
John E Traina, Glenshaw, PA (US);
United Sciences, Inc., Gibsonia, PA (US);
Abstract
A drive system for a probe of the type containing a first tubular housing within a second tubular housing which first tubular housing is advanced into and retracted from a conduit to take measurements of fluid within the conduit has a stepper motor for advancing the first tubular housing precisely controlled distances into and within the conduit. The stepper motor is connected to the first tubular housing through a friction drive roller which presses against the first tubular housing. Additionally, a rotational motor is connected to the outer tubular housing through a timing belt which extends around the second tubular housing. Sensors may be provided for measuring linear and rotational movement.