# US 5,343,651 A · Methods and mechanical apparatus for deterring birds > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,343,651 A - Document ID: US5343651A - Status: Granted - Kind: A - Application number: 07/789,430 - Filed: 1991-11-05 - Granted: 1994-09-06 - Earliest claimed: 1990-02-05 - Inventors: Victor H. Chatten - Web page: https://patentgrep.com/patent/US5343651A ## CPC - A01M 29/32: specially adapted for birds, e.g. spikes - 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 An easy to assemble mechanical apparatus and methods that create a barrier for deterring birds from landing at or near undesirable perching locations. The barrier is created by a rotating carriage that is propelled in a rotational motion by the wind or an available draft of air. A first embodiment utilizes a rotatable carriage which is an assemblage of individual parts that form one unified rotating body which rotates on antifriction bearing surfaces with horizontally disposed rods extending radially outward therefrom. A second embodiment utilizes a pivot pin which supports the rotating carriage portion and is designed to be placed in a variety of locations by an easy-to-use locknut and groove system. A quick action push-nut, or other means for securing, secures the rods or means for creating a barrier onto the carriage. The carriage rotates about the pivot pin with a multiplicity of rods or a means for creating a barrier extending out to any desired length and at any angular disposition from the carriage. ## Claims ### Claim 1 A mechanical apparatus for deterring birds from landing at undesirable perch locations comprising: a structurally supportive base having a first support member fixed onto said base; a carriage assembly, axially adjoining and mating with said first support member at bearing surfaces provided therein; a multiplicity of horizontally disposed rods, of stainless steel or rigid plastic or metal material, mechanically attached to said carriage assembly and projecting radially outward from said carriage assembly; and a coil latch attached to said supportive base with said coil latch initially engaging said carriage assembly and located adjacent to said carriage assembly after so engaging. ### Claim 2 A mechanical apparatus for deterring birds from landing at undesirable perch locations comprising: a structurally supportive base having a first support member fixed onto said base; a carriage assembly including, a core, said core having a central opening to axially adjoin and mate with said first support member at a bearing surface provided within said opening, a guide bearing, rotatably mounted about and contiguous with said first support member, a locking collar, contiguous with said core and said guide bearing, a base plate, rotatably mounted about and contiguous with said core and said locking collar; and a multiplicity of horizontally disposed rods, of stainless steel or rigid plastic or metal material, mechanically attached to said base plate and projecting radially outward from said base plate; and a coil latch attached to said supportive base with said coil latch initially engaging said carriage assembly and located adjacent to said carriage assembly after so engaging. ### Claim 3 A mechanical apparatus for deterring birds from landing at undesirable perch locations comprising: a structurally supportive base having a first support member fixed onto said base; a carriage assembly including, a core, said core having a central opening to axially adjoin and mate with said first support member at a bearing surface provided within said opening, a guide bearing, rotatably mounted about and contiguous with said first support member, a locking collar, contiguous with said core and said guide bearing, a base plate, rotatably mounted about and contiguous with said core and said locking collar wherein said base plate has a multiplicity of ports, each port engaging a rivet, said rivets positioned within said ports and securing said multiplicity of rods to said base plate, said base plate also having a multiplicity of grooved notches adjacent to and surrounding each of said ports, said grooved notches engaging said rods; and a multiplicity of horizontally disposed rods, of stainless steel or rigid plastic or metal material, mechanically attached to said base plate and projecting radially outward from said base plate. ### Claim 4 (depends on 3) The mechanical apparatus of claim 3 further comprising a cap plate, said cap plate rotatably mounted about said core and contiguous with said base plate. ### Claim 5 (depends on 4) The mechanical apparatus of claim 4 further comprising a coil latch attached to said supportive base with said coil latch initially engaging said carriage assembly and located adjacent to said carriage assembly after so engaging. ### Claim 6 (depends on 4) The mechanical apparatus of claim 4 further comprising a multiplicity of safety plugs, one of said safety plugs being mechanically attached to the distal end of each horizontally disposed rod of said multiplicity of horizontally disposed rods. ### Claim 7 A mechanical apparatus for deterring birds from landing at undesirable perch locations comprising: a pivot pin; a carriage, having a first aperture and a central shaft, said first aperture and said central shaft axially adjoining said pivot pin; a bearing, placed on said carriage within said first aperture and contiguous with said pivot pin; a multiplicity of rods, placed on said carriage and projecting outward therefrom; a retaining member, placed on said carriage and engaging the multiplicity of rods thereon; and a pushnut, attached to said carriage and contiguous with said retaining member. ### Claim 8 (depends on 7) The mechanical apparatus of claim 7 wherein said pivot pin is substantially cylindrical and further comprises a first rounded tip and a second rounded tip with a stepped portion therebetween, and a tapered section extending from said first rounded tip to said stepped portion. ### Claim 9 (depends on 7, 8) The mechanical apparatus of claim 7 or claim 8 wherein said pivot pin further comprises a groove, located on said pivot pin and adjacent to said stepped portion; and a locknut engaging said groove. ### Claim 10 (depends on 7) The mechanical apparatus of claim 7 wherein said central shaft further comprises an inner point and a smoothed surface therein. ### Claim 11 (depends on 7) The mechanical apparatus of claim 7 wherein said bearing further comprises a notched portion, said notched portion being adjacent to said pivot pin. ### Claim 12 A method for deterring birds from landing at undesirable perch locations, the method comprising the steps of: placing a multiplicity of rods upon a carriage, said carriage comprised of a multiplicity of recessed slots for said multiplicity of rods, said carriage having a central shaft for rotation; securing said multiplicity of rods to said carriage by a retaining member; fastening said retaining member to said carriage by a pushnut; mounting said carriage onto a pivot pin, said carriage engaging said pivot pin along a mutually concentric axis permitting rotation of said carriage, said pivot pin having a notch therein and a locknut positioned on said notch; and placing a portion of said pivot pin onto a base support, said base support being in contact with said locknut.