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. 07, 1988
Filed:
Mar. 30, 1987
Charles W Owen, Miami, FL (US);
Elexis Corporation, Miami, FL (US);
Abstract
Fleas are repelled from a four-legged animal by compressional waves derived from an electric-compressional wave transducer driven by electronic circuitry powered by a battery. The battery, circuitry and transducer are mounted in a housing carried by a collar around the neck of the animal. The housing includes a first face having an aperture covered by a dust screen. A face of the transducer positioned behind the dust screen radiates compressional wave energy through the dust screen that is reflected from the ground beneath the animal back to the underneath portions of the animal. The duty cycle and frequency of ultrasonic pulses derived by the transducer cause the fleas to be repelled. A second face, opposite from the first face, abuts against the body of the animal and carries a frangible, spring-like plate having a pair of slots through which the collar extends. The plate spring properties and the frictional force of the strap in the slots maintain the housing in situ on the neck of the animal, so the compressional waves are directed to the ground. If the animal becomes trapped by the housing, the plate breaks between the slot and an edge of the plate in response to the animal tugging on the trapping agent to enable the animal to escape.