# US 5,343,652 A · Method and apparatus for laser pest control > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,343,652 A - Document ID: US5343652A - Status: Granted - Kind: A - Application number: 07/898,012 - Filed: 1992-06-12 - Granted: 1994-09-06 - Earliest claimed: 1992-06-12 - Inventors: W. Dudley Johnson - Web page: https://patentgrep.com/patent/US5343652A ## CPC - F41H 13/0056: {for blinding or dazzling, i.e. by overstimulating the opponent's eyes or the enemy's sensor equipment} - A01M 1/02: with devices {or substances, e.g. food, pheronones} attracting the insects - A01M 1/04: {Attracting insects by} using illumination {or colours (A01M1/08 and A01M1/145 take precedence)} - A01M 1/226: {by using waves, fields or rays, e.g. sound waves, microwaves, electric waves, magnetic fields, light rays} - A01M 2200/011: Crawling insects - A01M 2200/012: Flying insects - F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL - A01M: CATCHING, TRAPPING OR SCARING OF ANIMALS (appliances for catching swarms or drone-catching A01K57/00; fishing A01K69/00 - {A01K99/00}; biocides, pest repellants or attractants A01N); APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS ## Abstract The invention provides an apparatus and a method for controlling pests which, according to one aspect of the invention, uses a laser beam which is scanned over a defined area and incapacitates sensory organs of various pests when they enter the defined area. Such a pest control system uses a laser source in cooperation with a scanner which then repetitively scans the laser beam throughout the defined area. Any pest which wanders into this area, or is attracted into this area, is likely to sense the laser beam, typically through its eyes or light spot. The laser beam is of sufficient energy to destroy the sensory organ and incapacitate the pest. ## Claims ### Claim 1 A method for automatic extermination of pests which comprises: (A) placing an automatic laser scanning system in a target location frequented by the pests; (B) scanning the target location according to a predetermined scanning pattern with a laser beam having an intensity sufficient to exterminate the pests; (C) repeating step (B) multiple times so that the target location is repetitively scanned; (D) detecting whether or not a pest is present in the target location using an automated sensor; (E) ceasing scanning if no pest is detected in step (D); and (F) resuming scanning when a pest is detected in the target location by the sensor. ### Claim 2 (depends on 1) The method of claim 1, further comprising placing an attractant in the scanned location frequented by pests in order to lure the pests into the scanned location. ### Claim 3 (depends on 4) The method of claim 4, wherein the attractant is selected from a light, a sound generator, a food bait, and a non-food odor generator. ### Claim 4 (depends on 1) The method of claim 1, wherein the scan comprises a raster or vector scan. ### Claim 5 (depends on 1) The method of claim 1, wherein the laser beam has a wavelength in the infrared, visible or ultraviolet range and has a power in the range of about 2 to 1000 watts. ### Claim 6 (depends on 1) The method of claim 1, wherein the pest is an invertebrate. ### Claim 7 (depends on 6) The method of claim 6, wherein the invertebrate is an insect. ### Claim 8 (depends on 1) The method of claim 1, wherein the pest is a rodent. ### Claim 9 (depends on 1) The method of claim 1, wherein the predetermined pattern is the same for each scan of the target location. ### Claim 10 (depends on 1) The method of claim 1, wherein step (C) further comprises intermittently scanning the target location. ### Claim 11 (depends on 1) The method of claim 1, wherein step (D) further comprises detecting motion in the target location using a motion sensor. ### Claim 12 (depends on 1) The method of claim 1, wherein the target location is an indoor location. ### Claim 13 A method for automatic extermination of pests which comprises: (A) placing an automatic laser scanning system in a target location frequented by the pests; (B) scanning the target location according to a predetermined scanning pattern with a laser beam having an intensity sufficient to exterminate the pests; (C) repeating step (B) multiple times so that the target location is repetitively scanned; (D) detecting whether or not a pest is present in the target location using an automated sensor; (E) ceasing scanning if no pest is detected in step (D); and (F) resuming scanning following a delay period after a pest has been detected in the target location. ### Claim 14 A trap for exterminating pests, comprising: a housing having an interior chamber and an opening through which the target pests can enter the chamber; and a source of a laser beam disposed within the housing, which beam is capable of killing or harming the target pests that enter the chamber. ### Claim 15 (depends on 14) The trap of claim 14, wherein the laser source is oriented within the housing so that the amount of laser light emitted from the opening of the housing is sufficiently small to be non-harmful to humans and higher animals. ### Claim 16 (depends on 14) The trap of claim 14, wherein the housing has means for permitting a dead or disabled insect to fall out of the trap. ### Claim 17 A method for automatic extermination of pests which comprises: placing an automatic laser system in a target location frequented by the pests; detecting whether or not a pest is present in the target location using an automated sensor; and automatically radiating the target location with a laser beam having an intensity sufficient to exterminate the pests whenever a pest is detected in the target location. ### Claim 18 (depends on 17) The method of claim 17, wherein the laser beam is a diverging beam that simultaneously covers the entire target location. ### Claim 19 (depends on 17) The method of claim 17, wherein the laser beam is a narrow beam, and the radiating step further comprises scanning the target location with the laser beam. ### Claim 20 (depends on 17) The method of claim 17, wherein the detecting step further comprises detecting motion in the target location using a motion sensor.