# US 8,739,921 B1 · Sealing, absorbing, and decoupling speaker ring kit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,739,921 B1 - Document ID: US8739921B1 - Status: Granted - Kind: B1 - Application number: 13/925,774 - Filed: 2013-06-24 - Granted: 2014-06-03 - Earliest claimed: 2013-06-24 - Applicants: Benjamin Leslie Larson - Inventors: Benjamin Leslie Larson - Web page: https://patentgrep.com/patent/US8739921B1 ## CPC - H04R 1/2896: {for loudspeaker transducers} - H04R 2499/13: Acoustic transducers and sound field adaptation in vehicles - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) ## Abstract An acoustic system kit for a vehicle speaker and associated methods of installation and manufacture are disclosed. A drum of open-cell foam, preferably several inches thick, having a peel-and-stick pressure-sensitive adhesive backing is cut with two concentric circles to create an outer ring, and inner ring, and a core. The parts are sized to correspond in diameter, respectively, to the front edge, rear edge, and back disc of a particular size of speaker. The inner ring is cut circumferentially to reduce its height to a thin strip relative to the outer ring and drum. Using the pressure-sensitive adhesive, the core is affixed to the inside wall of vehicle door directly behind the door's speaker mount, the inner ring is affixed to the rear edge of a speaker to be installed, and the outer ring is affixed to front edge of the speaker. The speaker is then installed on its mount. ## Claims ### Claim 1 A method of manufacturing an acoustic system kit, said acoustic system kit comprising: (a) an outer ring; (b) an inner ring; (c) a core; (d) said outer ring having the shape of a hollow cylinder having an outer circumferential surface, an inner circumferential surface, a top surface and a bottom surface; (e) said inner ring having the shape of a hollow cylinder having an outer circumferential surface, an inner circumferential surface, a top surface and a bottom surface; (f) said core having the shape of a cylindrical prism having an outer circumferential surface, a top surface, and a bottom surface; (g) said outer ring being made of a first compressible material; (h) said inner ring being made of a second compressible material; (i) said core being made of a third compressible material; (j) said outer ring having a first adhesive affixed to its bottom surface; (k) said inner ring having a second adhesive affixed to its bottom surface; (l) said core having a third adhesive affixed to its bottom surface; (m) the inner diameter of said outer ring is equal to the outer diameter of said inner ring; (n) the inner diameter of said inner ring is equal to the outer diameter of said core; (o) said outer ring and said core are of equal axial thickness; and said method of manufacturing comprising: (a) producing a drum made of a compressible material; (b) the axial thickness of said drum being equal to the intended axial thickness of said outer ring and said core; (c) the outer diameter of said drum being equal to the intended outer diameter of said outer ring; (d) applying an adhesive to the bottom surface of said drum; and (e) making a first circular cut and a second circular cut in said drum; (f) said first circular cut and said second circular cut both being parallel to the axial line of said drum; (g) the diameter of said first circular cut being equal to the intended inner diameter of said outer ring and the intended outer diameter of said inner ring; (h) the diameter of said second circular cut being equal to the intended inner diameter of said inner ring and the intended outer diameter of said core; whereby said drum is separated into said outer ring, said inner ring, and said core. ### Claim 2 (depends on 1) The method of claim 1 further comprising the additional step of making a planar cut through said inner ring, said cut being orthogonal to the axial line of said inner ring, retaining the portion of said inner ring that has the bottom surface of said inner ring and discarding the portion of said inner ring that has the top surface of said inner ring such that said inner ring has reduced axial thickness relative to said outer ring and said core. ### Claim 3 (depends on 2) The method of claim 2 wherein the axial thickness of said inner ring is about one quarter inch. ### Claim 4 (depends on 1) The method of claim 1 wherein said compressible material is open-cell foam. ### Claim 5 (depends on 4) The method claim 4 wherein said open-cell foam is a 1.8 lb open-cell foam. ### Claim 6 (depends on 1) The method of claim 1 wherein said adhesive is a peel-and-stick pressure-sensitive adhesive. ### Claim 7 (depends on 3) The method of claim 3 wherein said adhesive is a peel-and-stick pressure-sensitive adhesive. ### Claim 8 A method of installation of an acoustic system kit, said acoustic system kit comprising: (a) an outer ring; (b) an inner ring; (c) a core; (d) said outer ring having the shape of a hollow cylinder having an outer circumferential surface, an inner circumferential surface, a top surface and a bottom surface; (e) said inner ring having the shape of a hollow cylinder having an outer circumferential surface, an inner circumferential surface, a top surface and a bottom surface; (f) said core having the shape of a cylindrical prism having an outer circumferential surface, a top surface, and a bottom surface; (g) said outer ring being made of a first compressible material; (h) said inner ring being made of a second compressible material; (i) said core being made of a third compressible material; (j) said outer ring having a first adhesive affixed to its bottom surface; (k) said inner ring having a second adhesive affixed to its bottom surface; (l) said core having a third adhesive affixed to its bottom surface; (m) the inner diameter of said outer ring is equal to the outer diameter of said inner ring; (n) the inner diameter of said inner ring is equal to the outer diameter of said core; (o) said outer ring and said core are of equal axial thickness; and said method of installation comprising: (a) identifying a speaker and a speaker installation site; (b) said speaker installation site having a circular speaker mount; (c) said speaker installation site having a surface behind said circular speaker mount that is not in mechanical contact with said speaker when said speaker is installed on said speaker mount; (d) said speaker installation site having a grille-cover in front of said circular speaker mount that is not in mechanical contact with said speaker when said speaker is installed on said speaker mount; (e) cleaning said speaker, said speaker mount, said surface behind said speaker mount, and said grille cover; (f) affixing said core to said surface behind said speaker mount using said third adhesive; (g) affixing said inner ring to the rear edge of said speaker using said second adhesive; (h) installing said speaker; (i) affixing said outer ring to the front edge of said speaker using said first adhesive; (j) placing said grille-cover loosely while observing said outer ring; (k) if said outer ring experiences excessive deformation or folding, making a planar cut in said outer ring; (l) said planar cut in said outer ring being orthogonal to the axial line of said outer ring; (m) said planar cut in said outer ring being positioned to reduce the axial thickness of said outer ring such that said outer ring no longer undergoes excessive deformation or folding upon placing said grille-cover; and (n) installing said grille-cover. ### Claim 9 (depends on 8) The method of claim 8 further comprising the additional step of making a planar cut through said inner ring, said cut being orthogonal to the axial line of said inner ring, retaining the portion of said inner ring that has the bottom surface of said inner ring and discarding the portion of said inner ring that has the top surface of said inner ring such that said inner ring has reduced axial thickness relative to said outer ring and said core. ### Claim 10 (depends on 9) The method of claim 9 wherein the axial thickness of said inner ring is about one quarter inch. ### Claim 11 (depends on 8) The method of claim 8 wherein said compressible material is open-cell foam. ### Claim 12 (depends on 11) The method claim 11 wherein said open-cell foam is a 1.8 lb open-cell foam. ### Claim 13 (depends on 8) The method of claim 8 wherein said adhesive is a peel-and-stick pressure-sensitive adhesive. ### Claim 14 (depends on 12) The method of claim 12 wherein said adhesive is a peel-and-stick pressure-sensitive adhesive. ### Claim 15 An acoustic system kit, said acoustic kit being the product of a method of manufacture, said acoustic system kit comprising: (a) an outer ring; (b) an inner ring; (c) a core; (d) said outer ring having the shape of a hollow cylinder having an outer circumferential surface, an inner circumferential surface, a top surface and a bottom surface; (e) said inner ring having the shape of a hollow cylinder having an outer circumferential surface, an inner circumferential surface, a top surface and a bottom surface; (f) said core having the shape of a cylindrical prism having an outer circumferential surface, a top surface, and a bottom surface; (g) said outer ring being made of a first compressible material; (h) said inner ring being made of a second compressible material; (i) said core being made of a third compressible material; (j) said outer ring having a first adhesive affixed to its bottom surface; (k) said inner ring having a second adhesive affixed to its bottom surface; (l) said core having a third adhesive affixed to its bottom surface; (m) the inner diameter of said outer ring is equal to the outer diameter of said inner ring; (n) the inner diameter of said inner ring is equal to the outer diameter of said core; (o) said outer ring and said core are of equal axial thickness; and said method of manufacture comprising: (a) producing a drum made of a compressible material; (b) the axial thickness of said drum being equal to the intended axial thickness of said outer ring and said core; (c) the outer diameter of said drum being equal to the intended outer diameter of said outer ring; (d) applying an adhesive to the bottom surface of said drum; and (e) making a first circular cut and a second circular cut in said drum; (f) said first circular cut and said second circular cut both being parallel to the axial line of said drum; (g) the diameter of said first circular cut being equal to the intended inner diameter of said outer ring and the intended outer diameter of said inner ring; (h) the diameter of said second circular cut being equal to the intended inner diameter of said inner ring and the intended outer diameter of said core; whereby said drum is separated into said outer ring, said inner ring, and said core. ### Claim 16 (depends on 15) The acoustic system kit of claim 15 wherein said method of manufacture further comprises the additional step of making a planar cut through said inner ring, said cut being orthogonal to the axial line of said inner ring, retaining the portion of said inner ring that has the bottom surface of said inner ring and discarding the portion of said inner ring that has the top surface of said inner ring such that said inner ring has reduced axial thickness relative to said outer ring and said core. ### Claim 17 (depends on 16) The acoustic system kit of claim 16 wherein the axial thickness of said inner ring is about one quarter inch. ### Claim 18 (depends on 15) The acoustic system kit of claim 15 wherein said compressible material is open-cell foam. ### Claim 19 (depends on 18) The acoustic system kit of claim 18 wherein said open-cell foam is a 1.8 lb open-cell foam. ### Claim 20 (depends on 15) The acoustic system kit of claim 15 wherein said adhesive is a peel-and-stick pressure-sensitive adhesive.