Patent US3228036A successfully refreshed from Google Patents.
Patent US4890356A successfully refreshed from Google Patents.
US4890356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge for the connection of the shaft of a temple with a hinge piece of spectacle frames as well as a process for the production of such a hinge
Assignee: EYEMETRICS-SYSTEMS AG A SWISS Co
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Filing: 1988-08-19
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Granted: 1990-01-02
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Expires: 2008-08-19
Abstract
Abstract In the case of a hinge for the connecting of a temple shaft with a hinge piece of a spectacle frame, at least one hinge eye is located on only one of these elements (the hinge piece or the shaft of the temple). The hinge pin running through this eye is designed in one piece with the other element (the shaft of the temple or the hinge piece). For this purpose, either the hinge pin of plastic is injection molded into the opening of the hinge eye or the hinge eye of plastic is injection molded around the hinge pin. In this case, one preferably proceeds in such a manner that one of the two elements with the associated hinge eye or hinge pin is formed first and that this initially formed element forms a part of the surface of the cavity of the injection molding tool for the other element such that the other element is injection-molded directly onto the initially produced element. The high strength of this hinge prevents breakage due to wear and tear, which increases ins service life on the one hand and on the other hand conveys small dimensions to the hinge.
Inventors
- 👤 Gunther Czech
- 👤 Joachim Baum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:39
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/14336; B29C45/14754; E; E05; E05D; E05D9/00; E05D9/005; G; G02; G02C; G02C5/00; G02C5/22; G02C5/2209; B29L; B29L2012/00; B29L2012/005; B29L2031/00; B29L2031/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
153 words
A hinge for the connection of a temple shaft to a hinge piece of a spectacle frame, with at least one hinge eye in the form of an uninterrupted ring, which is attached to a first of the two connected elements, and with a hinge bolt, uninterrupted and having the shape of a cylinder constricted in the middle in axial section, with said hinge bolt extending through the opening of the hinge eye and extending between two plates on the second of the two connected element, in which case at least the hinge bolt or the hinge eye comprises a plastic that is injection molded, the hinge bolt and the second element being designed in one piece and that either the hinge bolt comprised of the plastic is injection molded into the opening of the hinge eye or that the hinge eye comprised of the plastic is injection molded around the hinge bolt.
Claim 2
Dependent Claim
153 words
A hinge for the connection of a temple shaft to a hinge piece of a spectacle frame, with at least one hinge eye in the form of an uninterrupted ring, which is attached to a first of the two connected elements, and with a hinge bolt, uninterrupted and having the shape of a cylinder constricted in the middle in axial section, with said hinge bolt extending through the opening of the hinge eye and extending between two plates on the second of the two connected element, in which case at least the hinge bolt or the hinge eye comprises a plastic that is injection molded, the hinge bolt and the second element being designed in one piece and that either the hinge bolt comprised of the plastic is injection molded into the opening of the hinge eye or that the hinge eye comprised of the plastic is injection molded around the hinge bolt.
Claim 3
Dependent Claim
35 words
A hinge according to claim 1, characterized by the fact that the transitions between the segment of the hinge bolt, located in the opening of the hinge eye, and the second element are rounded off.
Claim 4
Dependent Claim
29 words
A hinge according to claim 1, characterized by the fact that the at least one hinge eye and the first of the two elements are formed in one piece.
Claim 5
Dependent Claim
45 words
A hinge according to claim 3, characterized by the fact that the first element with the hinge eye and the second element with the hinge bolt are comprised of different plastics which do not engage in a combination of the materials during the injection molding.
Claim 6
Dependent Claim
29 words
A hinge according to claim 4, characterized by the fact that the two plastics are incompatible at the processing temperature of the plastic of the injection molded hinge eye.
Claim 7
Dependent Claim
42 words
A hinge according to claim 4 characterized by the fact that one of the plastics of the injection molded hinge has a glass transition temperature which is at least 40 degrees C. lower than the glass transition temperature of the other plastic.
Claim 8
Dependent Claim
33 words
A hinge according to any one of claims 1, 2, or 3 through 8 characterized by the fact that the at least one hinge eye is attached to the shaft of the temple.
Claim 9
Dependent Claim
31 words
A hinge according to any one of claims 1, 2, or 3 through 8 characterized by the fact that the at least one hinge eye is attached to the hinge piece.
Claim 10
Dependent Claim
31 words
A hinge according to claim 6, characterized by the fact that the height of the hinge in the direction of the axis of the hinge (x) is less than 8 mm.
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) | 1993-01-01 | 1993-07-03 | 1994-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-01 | 1997-07-03 | 1998-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-01 | 2001-07-03 | 2002-01-02 | $7700.00 | Window Closed / Lapsed |