US3847342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the production of recording electrodes of the multiple needle type
Assignee: Ricoh Co Ltd
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Filing: 1972-12-07
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Granted: 1974-11-12
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Expires: 1992-12-07
Abstract
Abstract An apparatus comprising an upper mold formed at its top with a plurality of resin injecting gates and on its lower surface with a plurality of rectangular recesses, and a lower mold having a planar upper surface and a substantially convex lower surface and being formed on the planar upper surface with a plurality of rectangular resin receiving recesses disposed parallel to each other and along the longitudinal axis of the lower mold, the lower mold having a very fine wire wound thereon in convolutions in predetermined spaced apart relationship. After the upper mold is placed on the lower mold, a resin is injected through the resin injecting gates into a cavity formed by the rectangular recesses in the upper and lower molds and allowed to solidify therein so as to fix portions of the wire convolutions disposed in the resin receiving recesses. A printed board is applied to each side of the upper portion of the lower mold, and the wire is wound on the two printed boards as well as the lower mold. Then, the two printed boards are electrically connected to the wire before the latter is cut and removed from the lower mold on which it is wound.
Inventors
- 👤 T Matsuura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:48
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/14639; B29C45/14336; B29C45/14385; H; H04; H04N; H04N1/00; H04N1/024; H04N1/032
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
187 words
An apparatus for the production of recording electrodes of the multiple needle type comprising a lower mold having a planar upper surface and a substantially convex lower surface, said planar upper surface being formed thereon with a plurality of resin receiving rectangular recesses disposed parallel to each other and along the longitudinal axis of the lower mold, said lower mold being adapted to have a wire wound spirally in convolutions on its periphery in predetermined spaced apart relationship, and an upper mold formed on its lower surface with a plurality of shallow rectangular recesses in positions corresponding to those of the resin receiving recesses formed in the lower mold and in its upper portion with at least one resin injecting gate for injecting therethrough a resin into a cavity formed by the rectangular recesses in the upper and lower molds, to thereby embed in resin a plurality of parallel lengths of wire, each length being that part of a convolution of wire wound over the lower mold which is within said cavity, while the remainder of the wire length of the convolution is not embedded in resin.
Claim 2
Independent Claim
187 words
An apparatus for the production of recording electrodes of the multiple needle type comprising a lower mold having a planar upper surface and a substantially convex lower surface, said planar upper surface being formed thereon with a plurality of resin receiving rectangular recesses disposed parallel to each other and along the longitudinal axis of the lower mold, said lower mold being adapted to have a wire wound spirally in convolutions on its periphery in predetermined spaced apart relationship, and an upper mold formed on its lower surface with a plurality of shallow rectangular recesses in positions corresponding to those of the resin receiving recesses formed in the lower mold and in its upper portion with at least one resin injecting gate for injecting therethrough a resin into a cavity formed by the rectangular recesses in the upper and lower molds, to thereby embed in resin a plurality of parallel lengths of wire, each length being that part of a convolution of wire wound over the lower mold which is within said cavity, while the remainder of the wire length of the convolution is not embedded in resin.
Claim 3
Dependent Claim
36 words
An apparatus as set forth in claim 1 wherein a multitude of minuscule grooves of a predetermined pitch are formed and disposed parallel to one another on the substantially convex lower surface of said lower mold.
Claim 4
Dependent Claim
35 words
An apparatus as set forth in claim 1 wherein said lower mold is formed with planar upper opposite side surfaces to facilitate applying of a printed circuit board to each of said planar side surfaces.
Claim 5
Dependent Claim
31 words
An apparatus as set forth in claim 1 wherein said lower mold includes a built-in heater to heat the mold to a temperature in the range between 50* and 80* C.
Claim 6
Dependent Claim
35 words
An apparatus as set forth in claim 1 wherein said lower mold comprises a mold proper and a supporter disposed one over the other, and a heater mounted between said mold proper and said supporter.
Claim 7
Independent Claim
198 words
An apparatus for producing recording electrodes of the multiple needle type, comprising: a lower mold having a planar upper surface and a substantially convex lower surface, said planar upper surface having means defining a plurality of resin receiving recesses each extending along the longitudinal axis of the lower mold, said lower mold having means for receiving a wire wound spirally in convolutions around the outer periphery of the lower mold and over said recesses therein in predetermined spaced apart relationship, and an upper mold formed on its lower surface with a plurality of shallow recesses disposed in positions corresponding to those of the resin receiving recesses in the lower mold and formed in its upper portion with at least one resin injecting gate for injecting therethrough a resin into a cavity formed by the facing recesses in the upper and lower molds, whereby a plurality of convolutions of wire can be wound around the outer periphery of the lower mold, said convolution being in predetermined spaced-apart relationship, and the wire portions which extend through said cavity can be embedded in resin injected therein through said gate while the remainder of the convolution portions are not embedded in resin.
Claim 8
Independent Claim
198 words
An apparatus for producing recording electrodes of the multiple needle type, comprising: a lower mold having a planar upper surface and a substantially convex lower surface, said planar upper surface having means defining a plurality of resin receiving recesses each extending along the longitudinal axis of the lower mold, said lower mold having means for receiving a wire wound spirally in convolutions around the outer periphery of the lower mold and over said recesses therein in predetermined spaced apart relationship, and an upper mold formed on its lower surface with a plurality of shallow recesses disposed in positions corresponding to those of the resin receiving recesses in the lower mold and formed in its upper portion with at least one resin injecting gate for injecting therethrough a resin into a cavity formed by the facing recesses in the upper and lower molds, whereby a plurality of convolutions of wire can be wound around the outer periphery of the lower mold, said convolution being in predetermined spaced-apart relationship, and the wire portions which extend through said cavity can be embedded in resin injected therein through said gate while the remainder of the convolution portions are not embedded in resin.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |