US5135694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic device wristband
Assignee: Seiko Epson Corp
•
Filing: 1990-11-09
•
Granted: 1992-08-04
•
Expires: 2010-11-09
Abstract
Abstract A method of forming an integral intermediate layer in a flexible single injection molded component is disclosed. According to the method a strip comprising the sandwiched layer is securely positioned within a molding cavity. During injection of the mold material a tensile force is applied throughout the strip in a plane orthogonal to a critical component direction. The method is particularly suited for the fabrication of wrist mounted electronic devices having an electrical connection to a conductive member integrally housed within a molded wristband.
Inventors
- 👤 Fumiaki Akahane
- 👤 Kazunori Miyashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:36
CPC Classifications
G; G04; G04G; G04G21/00; G04G21/04; B; B29; B29C; B29C45/00; B29C45/14; B29C45/14065; B29C45/14311; B29C45/14778; G04G17/00; G04G17/08; G04G17/086; G04R; G04R60/00; G04R60/04; G08; G08B; G08B5/00; G08B5/22; G08B5/222; G08B5/223; G08B5/224; G08B5/228; B29K; B29K2083/00; B29K2083/005; B29K2715/00; B29K2715/006
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
145 words
A method for injection-molding a wristband embedded antenna comprising the steps of: a. providing a flexible electrically conductive member having a removable tag projecting from one longitudinal end of said member and an end portion projecting from an opposite end of said member; b. forming a molding cavity from a pair of molds and further forming a gate, positioned on an inner wristband side, for injection of a molding material; c. securing said member within said molding cavity such that said member is nipped between said pair of molds; d. applying a tensile force to said member; e. injecting a molding material into said cavity concurrently with step d; f. releasing said tensile force following step e; and g. severing said tag from said conductive member inside the molded wristband after step f such that any unremoved tag portion remains unexposed at the wristband end.
Claim 2
Independent Claim
145 words
A method for injection-molding a wristband embedded antenna comprising the steps of: a. providing a flexible electrically conductive member having a removable tag projecting from one longitudinal end of said member and an end portion projecting from an opposite end of said member; b. forming a molding cavity from a pair of molds and further forming a gate, positioned on an inner wristband side, for injection of a molding material; c. securing said member within said molding cavity such that said member is nipped between said pair of molds; d. applying a tensile force to said member; e. injecting a molding material into said cavity concurrently with step d; f. releasing said tensile force following step e; and g. severing said tag from said conductive member inside the molded wristband after step f such that any unremoved tag portion remains unexposed at the wristband end.
Claim 3
Dependent Claim
28 words
The method of claim 1, wherein an adhesive is applied to at least a portion of at least one surface of said flexible member prior to step e.
Claim 4
Dependent Claim
28 words
The method of claim 1 wherein said tensile force is applied to said tag projecting from one longitudinal end of said member and projecting beyond said molding cavity.
Claim 5
Dependent Claim
70 words
A method of injection-molding a wristband as set forth in claim 1, wherein said end portion is disposed between opposing regions of the upper and lower faces of injection molds defining said molding cavity, and wherein said opposing regions of said molds define a part of said cavity corresponding to the wrist side of said wristband and include a gate through which the molding material is injected into said cavity.
Claim 6
Dependent Claim
37 words
A method of injection-molding a wristband as set forth in claim 1, wherein said conductive member defines a plurality of holes for increasing the bond of said conductive member to said molding material injected into said cavity.
Claim 7
Dependent Claim
38 words
A method of injection-molding a wristband as set forth in claim 1, wherein said conductive member is coated on at least one surface with adhesive for bonding said conductive member to said molding material injected into said cavity.
Claim 8
Dependent Claim
34 words
A method of injection-molding a wristband as set forth in claim 1, wherein said conductive member is fabricated of stainless steel having a thickness in the range of about 0.05 mm to 0.2 mm.
Claim 9
Dependent Claim
31 words
A method of injection-molding a wristband as set forth in claim 1, wherein said molding material is two-part silicone rubber and said adhesive is a primer of a silane coupling agent.
Claim 10
Dependent Claim
34 words
A method of injection-molding a wristband as set forth in claim 4, wherein said tag is cut away following injection from said conductive member along a cut-away line positioned immediately inside the molded wristband.
Claim 11
Dependent Claim
23 words
A method of injection-molding a wristband as set forth in claim 9, wherein said cut-away line is a groove on said conductive member.
Claim 12
Dependent Claim
21 words
A method of injection-molding a wristband as set forth in claim 10 wherein said conductive member defines a plurality of holes.
Claim 13
Dependent Claim
41 words
A method of injection-molding a wristband as set forth in claim 11, wherein said conductive member is coated on a portion of at least one surface with adhesive for bonding said conductive member to said molding material injected into said cavity.
Claim 14
Dependent Claim
31 words
A method of injection-molding a wristband as set forth in claim 12, wherein said molding material is two-part silicone rubber and said adhesive is a primer of a silane coupling agent.
References Cited (Backward Citations)
US2500598A
Cited
US3088847A
Cited
US3498824A
Cited
US3505099A
Cited
US3686731A
Cited
US3976740A
Cited
JPS5889202A
Cited
US4808483A
Cited
US4713808A
Cited
JPS63252002A
Cited
EP0339482A1
Cited
US4884252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-04 | 1996-02-03 | 1996-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-04 | 2000-02-03 | 2000-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-04 | 2004-02-03 | 2004-08-04 | $7700.00 | Window Closed / Lapsed |