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1. 发明授权

US11222616B2 Securing device for piano strings 有权
公开(公告)号：US11222616B2
公开(公告)日：2022-01-11
申请号：US17257757
申请日：2019-05-07
申请人： Vladislav Vladimirovich Volkov
发明人： Vladislav Vladimirovich Volkov
IPC分类号： G10C3/106 , G10C3/07 , G10C3/04 , G10C3/06
摘要： The invention relates to a device for tightening the strings of a keyboard musical instrument. The device provides for rigidly securing a tuning pin in position by means of a collet pressing into a cast-iron frame, an elastic ring being mounted on windings of a string. The present technical improvements increase tuning stability and tuning retention, increase string resistance to breaking, and increase the service life of a musical instrument.

2. 发明申请

US20220366875A1 PIANO TUNING RETENTION SYSTEM 有权
公开(公告)号：US20220366875A1
公开(公告)日：2022-11-17
申请号：US17807652
申请日：2022-06-17
申请人： Timothy Jenson
发明人： Timothy Jenson
IPC分类号： G10C3/106 , G10C3/04
摘要： A piano tuning retention system includes first and second bushings, each having a threaded upper longitudinal end and a lower longitudinal end that defines a polygonal interior for mating with a polygonal end of a respective piano tuning pin, first and second threaded fasteners corresponding to the threaded upper longitudinal ends of the bushings, first and second sleeves that fit over the bushings, each of the sleeves having an upper longitudinal end with an inward radial extension that defines a reduced inner diameter and a lower longitudinal end that defines a catch (e.g. a notch) extending in a circumferential direction of the sleeve for engagement with a piano string, and a bridge configured to be sandwiched between the threaded fasteners and the inward radial extensions of the sleeves with the bushings disposed within the sleeves and the threaded fasteners fastened to the threaded upper longitudinal ends of the bushings.

3. 发明授权

US11056084B1 Pin turning tool kit 有权
公开(公告)号：US11056084B1
公开(公告)日：2021-07-06
申请号：US17228574
申请日：2021-04-12
申请人： John H Gunderson
发明人： John H Gunderson
IPC分类号： G10C3/106 , G10C9/00
摘要： An improved piano tuning lever includes a handle with a loop or ring large enough to fit the fingers of a user's hand, thereby providing a grip around the perimeter of the loop or ring which is independent of the axis of the handle. The resulting grip affords improved ergonomics and may lessen stress in the user's wrist and hand when having to conform to various angles of the handle axis as the tuning lever is moved from tuning pin to tuning pin over the course of a piano tuning. The improved handle and loop or ring may be made any size or shape, symmetrical or asymmetrical and with its core being solid, hollow, or filled. Another embodiment of the piano tuning lever includes a spline designed to mate with an inventive piano tuning lever head having complementary splines.

4. 发明授权

US11380289B1 Piano tuning retention system 有权
公开(公告)号：US11380289B1
公开(公告)日：2022-07-05
申请号：US17319992
申请日：2021-05-13
申请人： Timothy Jenson
发明人： Timothy Jenson
IPC分类号： G10C3/106 , G10C3/04
摘要： A piano tuning retention system includes first and second bushings, each having a threaded upper longitudinal end and a lower longitudinal end that defines a polygonal interior for mating with a polygonal end of a respective piano tuning pin, first and second threaded fasteners corresponding to the threaded upper longitudinal ends of the bushings, first and second sleeves that fit over the bushings, each of the sleeves having an upper longitudinal end with an inward radial extension that defines a reduced inner diameter and a lower longitudinal end that defines a catch (e.g. a notch) extending in a circumferential direction of the sleeve for engagement with a piano string, and a bridge configured to be sandwiched between the threaded fasteners and the inward radial extensions of the sleeves with the bushings disposed within the sleeves and the threaded fasteners fastened to the threaded upper longitudinal ends of the bushings.

5. 发明申请

US20210158785A1 SECURING DEVICE FOR PIANO STRINGS 有权
公开(公告)号：US20210158785A1
公开(公告)日：2021-05-27
申请号：US17257757
申请日：2019-05-07
申请人： Vladislav Vladimirovich VOLKOV
发明人： Vladislav Vladimirovich VOLKOV
IPC分类号： G10C3/106 , G10C3/04 , G10C3/06 , G10C3/07
摘要： The invention relates to a device for tightening the strings of a keyboard musical instrument. The device provides for rigidly securing a tuning pin in position by means of a collet pressing into a cast-iron frame, an elastic ring being mounted on windings of a string. The present technical improvements increase tuning stability and tuning retention, increase string resistance to breaking, and increase the service life of a musical instrument.

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