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:
Apr. 14, 2020
Filed:
Dec. 07, 2017
Radio Systems Corporation, Knoxville, TN (US);
Christopher E. Mainini, Knoxville, TN (US);
Bill Groh, Knoxville, TN (US);
RADIO SYSTEMS CORPORATION, Knoxville, TN (US);
Abstract
A pet door is provided having a frame unit and a pivotal flap. The pet door includes a sill which is magnetically biased to attach to the lower end of the flap unit so as to maintain the flap unit in its closed position and to resist pressure differential forces applied to the flap unit, but to provide a lower degree of resistance at one or both of lower corners of the flap unit. The sill includes a first latch member extending from the sill which cooperates with a second latch member coupled to the bottom of the flap unit. At least one of the latch members may be frusto-conical in shape.