# US 9,520,113 B2 · Resonance control compression pad for the acoustic bass drum > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,520,113 B2 - Document ID: US9520113B2 - Status: Granted - Kind: B2 - Application number: 14/734,476 - Filed: 2015-06-09 - Published: 2015-12-17 - Granted: 2016-12-13 - Earliest claimed: 2014-06-12 - Assignees: Sledgepad Innovations, LLC - Applicants: Michael G. Vermillion - Inventors: Michael G. Vermillion - Web page: https://patentgrep.com/patent/US9520113B2 ## CPC - G10D 13/10: Details of, or accessories for, percussion musical instruments - G10D 13/02: Drums; Tambourines with drumheads - G10D 13/14: Mutes or dampers - G10D 13/16: Tuning devices; Hoops; Lugs - G10D: STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR (organs, harmoniums or similar wind musical instruments with associated blowing apparatus G10B; pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards G10C; automatic musical instruments G10F; electrophonic musical instruments in which tones are generated by electromechanical means G10H) ## Abstract A resonance control compression pad for the acoustic bass drum which in some embodiments may comprise: an elongate batter head contacting surface; an elongate resonance head contacting surface opposingly positioned to the elongate batter head contacting surface; and a plurality of baffles coupled to the elongate batter head contacting surface and to the elongate resonance head contacting surface. The elongate resonance head contacting surface may be configured to contact portions of a resonant head when the pad is positioned within a drum instrument, while the elongate batter head contacting surface may be configured to contact portions of a batter head when the pad is positioned within a drum instrument. The elongate resonance head contacting surface may exert pressure on the resonant head and the elongate batter head contacting surface may likewise exert pressure on the batter head, thereby providing resonance control to the drum instrument. ## Claims ### Claim 1 A resonance control compression pad for use with a drum instrument of the type including a resonant head separated by a first distance from an opposing batter head, both the resonant head and the batter head supported in a stretched state by a rigid frame and which can be selectively vibrated when the drum is played, the pad comprising: a. an elongate batter head contacting surface; b. an elongate resonance head contacting surface opposingly positioned to the elongate batter head contacting surface; c. a plurality of baffles positioned between the elongate batter head contacting surface and the elongate resonance head contacting surface; and wherein the resonance control compression pad has a first width (W1) defined as the distance between the elongate batter head contacting surface and the elongate resonance head contacting surface, and wherein the first width (W1) is greater than the first distance separating the resonant head from the opposing batter head. ### Claim 2 (depends on 1) The resonance control compression pad of claim 1, further comprising a planar baffle, the planar baffle comprising a planar baffle elongate batter head contacting surface configured to contact the batter head of the drum. ### Claim 3 (depends on 2) The resonance control compression pad of claim 2, further comprising a plurality of depressions formed along the elongate batter head contacting surface and the planar baffle elongate batter head contacting surface. ### Claim 4 (depends on 3) The resonance control compression pad of claim 3, wherein the depressions comprise a triangular prism shape. ### Claim 5 (depends on 1) The resonance control compression pad of claim 1, wherein the length of the elongate batter head contacting surface is greater than the length of the elongate resonance head contacting surface. ### Claim 6 (depends on 5) The resonance control compression pad of claim 5, wherein the length of the elongate resonance head contacting surface is between 25% and 75% of the length of the elongate batter head contacting surface. ### Claim 7 (depends on 5) The resonance control compression pad of claim 5, wherein the length of the elongate resonance head contacting surface is between 40% and 60% of the length of the elongate batter head contacting surface thereby forming a tapered shape to the resonance control compression pad. ### Claim 8 (depends on 5) The resonance control compression pad of claim 5, wherein the elongate batter head contacting surface has a surface area of at least 15 square inches. ### Claim 9 (depends on 5) The resonance control compression pad of claim 5, wherein the elongate batter head contacting surface has a surface area of between 19 and 29 square inches. ### Claim 10 (depends on 5) The resonance control compression pad of claim 5, wherein the elongate resonance head contacting surface has a surface area of at least 5 square inches. ### Claim 11 (depends on 5) The resonance control compression pad of claim 5, wherein the elongate resonance head contacting surface has a surface area of between 7 and 17 square inches. ### Claim 12 (depends on 1) The resonance control compression pad of claim 1, wherein the pad is made from an acoustically dampening foam. ### Claim 13 (depends on 12) The resonance control compression pad of claim 12, wherein the pad is made from an open cell acoustically dampening foam. ### Claim 14 (depends on 1) The resonance control compression pad of claim 1, wherein a baffle of the plurality of baffles comprises an elongated triangular prism shape. ### Claim 15 (depends on 1) The resonance control compression pad of claim 1, wherein the plurality of baffles are triangular prism shaped baffles extending along the first width (W1) of the pad. ### Claim 16 (depends on 1) The resonance control compression pad of claim 1, further comprising a planar baffle coupled to the plurality of baffles. ### Claim 17 (depends on 1) The resonance control compression pad of claim 1, wherein the elongate batter head contacting surface is parallel to the elongate resonance head contacting surface. ### Claim 18 (depends on 1) The resonance control compression pad of claim 1, wherein the pad is secured to the resonant head and to the opposing batter head of the drum without contacting the rigid frame of the drum. ### Claim 19 A resonance control compression pad for use with a drum instrument of the type including a resonant head and an opposing batter head both of which are supported in a stretched state by a rigid drum frame, the pad comprising: a. an elongate batter head contacting surface, the elongate batter head contacting surface in direct surface contact with the batter head and configured to dampen vibrations of the batter head; b. an elongate resonance head contacting surface opposingly positioned to the elongate batter head contacting surface, the elongate resonance head contacting surface in direct surface contact with the resonance head and configured to dampen vibrations of the resonance head; and c. a traverse baffle extending from the elongate batter head contacting surface to the elongate resonance head contacting surface. ### Claim 20 (depends on 19) The pad of claim 19, further comprising a planar baffle in direct contact with the resonance control compression pad, said planar baffle having an elongate batter head contacting surface in direct surface contact with the batter head.