Patent US4086017A successfully refreshed from Google Patents.
US4086017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for locating piano hammers for drilling
Assignee: Individual
•
Filing: 1977-05-02
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Granted: 1978-04-25
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Expires: 1997-05-02
Abstract
Abstract A device for supporting piano hammers for drilling a stem supporting opening therethrough which includes adjusting elements that serve to selectively locate the hammer supporting portion of the device in a preselected position to effect drilling an opening which will extend through the longitudinal axis of a piano hammer and at any desired angle relative to a plane normal with this axis.
Inventors
- 👤 Charles A. Nessler, deceased
- 👤 executrix by Mary M. Mulhern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:29
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/48; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5614; Y10T408/567
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
203 words
A device for positioning piano hammers for drilling an opening to receive a supporting stem which extends through the longitudinal axis of the piano hammer and at a preselected angle relative to a plane normal to the longitudinal axis, said device comprising: (a) a support assembly including; (i) a horizontal base; (ii) a supporting column extending upwardly from said base; and (iii) a vertically disposed plate member extending from said base in contiguous relation with said supporting column; (b) a selectively rotatable shaft journaled in said supporting column and extending from the latter in a plane parallel with and spaced from said base; (c) supporting means fixed on said rotatable shaft and supporting a platen support shelf on which a piano hammer is positioned for drilling; (d) said supporting means including; (i) means for selectively raising and lowering said platen support shelf thereon for locating the longitudinal axis of a hammer to be drilled co-axial with the axis of said rotatable shaft; and (ii) means for rotating said rotatable shaft to pivot said platen support shelf to a predetermined position while maintaining the longitudinal axis of the hammer co-axial with said shaft to effect drilling an opening through the hammer at an angle.
Claim 2
Independent Claim
203 words
A device for positioning piano hammers for drilling an opening to receive a supporting stem which extends through the longitudinal axis of the piano hammer and at a preselected angle relative to a plane normal to the longitudinal axis, said device comprising: (a) a support assembly including; (i) a horizontal base; (ii) a supporting column extending upwardly from said base; and (iii) a vertically disposed plate member extending from said base in contiguous relation with said supporting column; (b) a selectively rotatable shaft journaled in said supporting column and extending from the latter in a plane parallel with and spaced from said base; (c) supporting means fixed on said rotatable shaft and supporting a platen support shelf on which a piano hammer is positioned for drilling; (d) said supporting means including; (i) means for selectively raising and lowering said platen support shelf thereon for locating the longitudinal axis of a hammer to be drilled co-axial with the axis of said rotatable shaft; and (ii) means for rotating said rotatable shaft to pivot said platen support shelf to a predetermined position while maintaining the longitudinal axis of the hammer co-axial with said shaft to effect drilling an opening through the hammer at an angle.
Claim 3
Dependent Claim
25 words
The device according to claim 1 wherein said supporting means defines a depending bracket having said platen support shelf mounted for selective sliding movement thereon.
Claim 4
Dependent Claim
33 words
The device according to claim 2 wherein said raising and lowering means defines opposed and longitudinally extending channels in said bracket for receiving one end of said platen support shelf of conforming configuration.
Claim 5
Dependent Claim
65 words
The device according to claim 2 wherein said rotating means defines an elongated indicating arm forming a lower extension of said depending bracket with the lower terminus portion of said arm being disposed in operative association with an arcuated band of indicating indicia disposed on the face of said plate member for selectively locating said arm to effect pivoting said platen to a desired position.
Claim 6
Dependent Claim
59 words
The device according to claim 3 wherein said platen support shelf is disposed in operative association with positioning indicia carried by said depending bracket and includes locking means for its selective positioning at any desired location within said channels in accordance with said positioning indicia for locating the longitudinal axis of a piano hammer co-axial with said rotatable shaft.
Claim 7
Dependent Claim
40 words
The device according to claim 1 wherein said platen includes first and second selectively positionable stop members and locating indicia operatively associated with each said stop members to provide a positioning seat thereon to locate a piano hammer for drilling.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |