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:
May. 12, 2020
Filed:
May. 05, 2014
Dresser Wayne Ab, Perkasie, PA (US);
Randy A. Moses, Perkasie, PA (US);
Kent W. Robinson, Perkasie, PA (US);
Wayne Fueling Systems Sweden AB, Malmo, SE;
Abstract
An air purge and pressurization system that utilizes a variable speed fan and a feedback loop to optimize system operation is described herein. In one embodiment, such a system can include an enclosed container located in an area classified as hazardous, a controller rated for operation within the hazardous area, and a pressure sensor located within the container and coupled to the controller. The system can also include a variable-speed fan located outside the hazardous area and coupled to the controller. The controller can be configured to monitor air pressure within the container and variably control a speed of the fan to maintain the detected pressure above a minimum value. Accordingly, a required pressure can be maintained while minimizing a volume of air forced into the container.