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. 14, 1988
Filed:
Mar. 31, 1987
Edward B Gardner, Bloomfield, CT (US);
Emhart Industries, Inc., Farmington, CT (US);
Abstract
A lean detector comprises a first light source for determining the time of arrival of a container at an inspection site, a second light source for determining the time of arrival of a portion of the container at a predetermined position at the inspection site and a third light source for determining the time of arrival of another portion of the container at another predetermined position at the inspection site. The second and third light sources are perpendicular to each other. A guide rail laterally positions the container at the inspection site. Before real containers are inspected, a non-leaning test container is passed through the inspection site and the times of arrival of the corresponding second and third portions of the test container relative to the time of arrival of the container at the inspection site are determined to serve as reference values. Then, after a real container passes through the inspection site and the times of arrival measured, the reference values are subtracted from the times of arrival of the second and third portions of the real container at the inspection site so that it is not necessary to precisely position the light source relative to each other or relative to the guide rail in order to accurately determine the amount of lean of the real container.