Patent US4089530A successfully refreshed from Google Patents.
US4089530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonographic stylus
Assignee: Nagaoka KK
•
Filing: 1976-12-22
•
Granted: 1978-05-16
•
Expires: 1996-12-22
Abstract
Abstract A phonographic stylus comprising a stylus knob for record player and a holder, to which holder is attached a cantilever having a stylus tip. Said stylus knob and said holder are integrally formed of the same material. In said holder is formed integrally a damper.
Inventors
- 👤 Hirokazu Kawabe
- 👤 Hiroshi Tanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:19
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/44; G11B3/46
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
122 words
A phonographic stylus to be fitted in a cartridge for a record player comprising: a stylus knob having an integrally formed rearwardly extending holder, said holder having an inner hole therein, said stylus knob being formed of non-magnetic material, a stylus cantilever having a rear end and a stylus tip, and means for attaching said stylus cantilever to said holder, said means comprising an inside hollow holder supported in said inner hole of said holder, and a damper having a mounting hole therein for receiving and supporting said rear end of said stylus cantilever, said damper being molded in place within said inside hollow holder, whereby said damper makes close and uniform distortionless contact with the interior of said inside hollow holder.
Claim 2
Dependent Claim
122 words
A phonographic stylus to be fitted in a cartridge for a record player comprising: a stylus knob having an integrally formed rearwardly extending holder, said holder having an inner hole therein, said stylus knob being formed of non-magnetic material, a stylus cantilever having a rear end and a stylus tip, and means for attaching said stylus cantilever to said holder, said means comprising an inside hollow holder supported in said inner hole of said holder, and a damper having a mounting hole therein for receiving and supporting said rear end of said stylus cantilever, said damper being molded in place within said inside hollow holder, whereby said damper makes close and uniform distortionless contact with the interior of said inside hollow holder.
Claim 3
Dependent Claim
118 words
A phonographic stylus to be fitted in a cartridge for a record player comprising: a stylus knob having an integrally formed rearwardly extending hollow holder, said holder having an inner hole therein, said stylus knob being formed of non-magnetic material, a stylus cantilever having a rear end and a stylus tip, and means for attaching said stylus cantilever to said holder, said means comprising an inside hollow holder located in said inner hole of said hollow holder, and a damper having a mounting hole therein for supporting said stylus cantilever, said damper being molded in place within said inside hollow holder, whereby said damper makes close and uniform distortionless contact with the interior of said inside hollow holder.
Claim 4
Dependent Claim
118 words
A phonographic stylus to be fitted in a cartridge for a record player comprising: a stylus knob having an integrally formed rearwardly extending hollow holder, said holder having an inner hole therein, said stylus knob being formed of non-magnetic material, a stylus cantilever having a rear end and a stylus tip, and means for attaching said stylus cantilever to said holder, said means comprising an inside hollow holder located in said inner hole of said hollow holder, and a damper having a mounting hole therein for supporting said stylus cantilever, said damper being molded in place within said inside hollow holder, whereby said damper makes close and uniform distortionless contact with the interior of said inside hollow holder.
Claim 5
Dependent Claim
26 words
A phonographic stylus according to claim 2 wherein said mounting hole is substantially parallel to said inner hole in said hollow holder of said stylus knob.
Claim 6
Dependent Claim
26 words
A phonographic stylus according to claim 2 wherein said mounting hole is slanted relative to said inner hole in said hollow holder of said stylus knob.
Claim 7
Dependent Claim
44 words
A phonographic stylus according to claim 2 wherein said inner hole in said hollow holder of said stylus knob is of non-circular cross-sectional configuration and wherein said hollow inside holder has an exterior cross-sectional configuration which is homologous to that of said inner hole.
Claim 8
Dependent Claim
18 words
A phonographic stylus according to claim 5 wherein said inner hole has a square cross section and configuration.
Claim 9
Dependent Claim
104 words
A phonographic stylus according to claim 5 wherein said stylus knob includes a bottom wall portion, a front wall portion, and a pair of spaced apart side wall portions extending upwardly from said bottom wall portion and wherein said hollow holder extends from the rear end of said bottom wall portion whereby said stylus cantilever is supported on said stylus knob in a position where said rear end portion of said stylus cantilever is inside said inner hole of said hollow holder and said stylus tip is disposed outside said inner hole and adjacent and spaced from said bottom wall of said stylus knob.
References Cited (Backward Citations)
US3294405A
Cited
US3576955A
Cited
US3538266A
Cited
US3761647A
Cited
US3641284A
Cited
US3908096A
Cited
US4009885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |