# US 2014/0190339 A1 · Hand Controlled Volume Potentiometer Knob And Related Methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190339 A1 - Document ID: US20140190339A1 - Status: Published application - Kind: A1 - Application number: 14/150,479 - Filed: 2014-01-08 - Published: 2014-07-10 - Earliest claimed: 2013-01-10 - Inventors: Chad Smith - Web page: https://patentgrep.com/patent/US20140190339A1 ## CPC - G10H 1/46: Volume control - G10D 1/085: {Mechanical design of electric guitars} - G10H 1/32: Constructional details - G10H: ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE - 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 hand controlled volume potentiometer knob has a knob body for coupling with a potentiometer shaft on the body of a guitar and at least one arm extending from the knob body and angled to place a distal end of the arm proximate a playing area of the guitar. The arm allows a user to control guitar volume without removing his hand from a playing area of the guitar, by actuating the arm with a finger to turn the knob and thereby rotate the potentiometer shaft. ## Claims ### Claim 1 A hand controlled volume potentiometer knob, comprising: a knob body for coupling with a potentiometer shaft on the body of a guitar; and at least one arm extending from the knob body and angled to place a distal end of the arm proximate a playing area of the guitar, to allow a user to control guitar volume without removing his hand from a playing area of the guitar by actuating the arm with a finger to turn the knob,. ### Claim 2 (depends on 1) The knob of claim 1, the arm including a distal contact feature proximate the distal end, for accommodating a user's finger to facilitate moving the arm with the finger to adjust guitar volume. ### Claim 3 (depends on 2) The knob of claim 2, the distal contact feature selected from the group consisting of a notch, a pad, a swivel pad, a featured area, a gripping material, an abrasive material, a shallow dish, a distal enlargement of the arm, a distal tapering of the arm, and a ledge. ### Claim 4 (depends on 2) The knob of claim 2, wherein the distal contact feature rests proximate the strings of the guitar when the knob is in a neutral position, such that the user may adjust guitar volume while strumming or picking the strings. ### Claim 5 (depends on 1) The knob of claim 1, the knob body including an internal channel shaped to accept the potentiometer shaft. ### Claim 6 (depends on 5) The knob of claim 5, the internal channel comprising a key, located within the channel, for mating with a key of the shaft, the key operable to prevent the knob body from slipping from or spinning around the shaft. ### Claim 7 (depends on 6) The knob of claim 6, the key within the channel comprising a blade for mating with a slot in the shaft, or a flat for mating with a flat formed on the shaft. ### Claim 8 (depends on 1) The knob of claim 1, the arm configured with the knob body such that the arm extends towards the playing area of the guitar when the knob is in a neutral position. ### Claim 9 (depends on 1) The knob of claim 1, a distal end of the arm lying substantially parallel to the guitar strings when the knob is in a neutral position. ### Claim 10 (depends on 1) The knob of claim 1, the playing area being the strings of the guitar. ### Claim 11 (depends on 1) The knob of claim 1, the knob being coupled with the shaft by friction. ### Claim 12 (depends on 5) The knob of claim 5, the internal channel being a threaded channel for mating with a threaded shaft. ### Claim 13 (depends on 5) The knob of claim 5, the internal channel being elastic to facilitate attachment to the potentiometer shaft when the potentiometer shaft has a larger external diameter than the internal diameter of the collar. ### Claim 14 (depends on 1) The knob of claim 1, the knob body and the arm forming a continuous, one-piece knob. ### Claim 15 (depends on 1) The knob of claim 1, wherein the knob body and the arm are fabricated from one or more of metal, metal alloy, plastic, rubber, carbon fiber, fiberglass, wood, and ceramic. ### Claim 16 (depends on 1) The knob of claim 1, the arm comprising a keyed end for attaching to a keyed slot within the knob body. ### Claim 17 (depends on 1) The knob of claim 1, the arm extending upwards and outwards from the knob body to form an angle greater than 90 degrees between a circumferential side of the knob body and a bottom edge of the arm. ### Claim 18 (depends on 2) The knob of claim 2, wherein the distal contact feature rests proximate the strings of the guitar when the knob is in a neutral position, such that the user may adjust guitar volume while strumming or picking the strings. ### Claim 19 A hand controlled volume potentiometer knob, comprising: a knob body having an internal channel for fitting with a potentiometer shaft on a guitar body, and an arm extending upward and outward from the knob body and towards a playing area of the guitar, the arm including a distal contact feature for facilitating placement of a user's finger with the knob; wherein a user turns the knob by moving the arm with a finger placed at the distal contact feature, and wherein the distal contact feature rests proximate the strings of the guitar when in a neutral position, such that the user may adjust guitar volume while strumming or picking the strings. ### Claim 20 (depends on 19) The knob of claim 19, wherein the knob body and the arm form a continuous, one-piece knob. ### Claim 21 (depends on 19) The knob of claim 19, a bottom edge of the arm forming an angle of more than 90 degrees with a circumferential side of the knob body; and a top edge of the arm forming an angle of more than 90 degrees between the knob body and the distal contact feature.