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:
Mar. 16, 1982
Filed:
Aug. 15, 1980
Harold T Lange, St. Louis, MO (US);
Eugene J Ziegler, St. Louis, MO (US);
Sporlan Valve Company, St. Louis, MO (US);
Abstract
A filter-drier unit adapted for bidirectional flow in heat pump systems. This filter-drier unit includes a shell having opposed flow ports. Spaced partitions in the shell provide a compartment therebetween, each partition separating a flow port from the compartment. An outlet check valve is connected to each partition, and a perforated tube in the compartment, extends between and interconnects the outlet check valves. A molded desiccant core in the compartment, is disposed about the tube. An inlet check valve is connected to each partition in laterally spaced relation to the outlet check valve connected to the same partition to control the flow from each flow port through an inlet check valve in one partition and into the compartment, through the core and tube thence through an outlet check valve in the other partition, and out the other flow port.