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:
Sep. 03, 1996
Filed:
Sep. 28, 1994
Robert H Weinmann, Jr, Laguna Hills, CA (US);
Screening Systems, Inc., Laguna Hills, CA (US);
Abstract
The temperature of air to heat or cool a product (16, 18) is maintained constant at levels which respectively are substantially higher or lower than the goal temperatures at which the respective products are to be stressed. Controllers (68, 70)having temperature/time profiles (72, 74) control the velocity of this higher or lower temperature air, as supplied by closed loops (20, 22) from high and low temperature sources (24, 26) to the products in their environmental stress chambers (12, 14), or bypassed through bypass conduits (50, 52) to maintain or change the temperatures of the products. High and low temperature sources (24, 26) and the product stress chambers (12, 14) may be interconnected by a cross-over arrangement of branches (80, 82, 84 and 86) to economize energy for heating or cooling the air, and to enable both environmental chambers (12, 14) to be interchangeably used for stress heating or cooling and, thus, to avoid movement of a product for the same purpose.