Patent US3900278A successfully refreshed from Google Patents.
US3900278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for molding lamp sockets onto paired insulated conductors
Assignee: Noma Canada Inc
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Filing: 1973-10-09
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Granted: 1975-08-19
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Expires: 1993-10-09
Abstract
Abstract Electrical lamp sockets are moulded on and around elongated mutually insulated conductors to which the socket contacts are connected before moulding; the contacts being firmly embedded in the socket material. A transfer turntable carries a plurality of supports for mounting the socket contacts in spaced relation thereon; each support being successively brought to a moulding station and co-operating with mould elements to form a mould for the socket. The conductors are entrained through the moulding station and impaled on points of the contacts at said station prior to fully closing the mould and injecting the moulding charge.
Inventors
- 👤 Henry T Beck
- 👤 Rudolph Koehler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:10
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/14639; H; H01; H01R; H01R43/00; H01R43/20; H01R43/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
219 words
Apparatus for molding lamp sockets onto paired insulated conductors comprising: a core movable between a loading station and a molding station, said core member having slots for receiving and maintaining a pair of pointed electrical contacts in spaced relation with their points exposed for penetration into respective conductors to establish electrical connection therewith and with their margins extending from said core member for embedment in molding material; means at said loading station for locating said contacts in said slots as aforesaid; mold sections at said molding station movable between a closed position in which they surround said core member, cooperating with it to form a mold cavity of annular configuration for receiving molding material, and an open position in which said mold sections are separated from each other and from said core member enabling release of the molded socket and removal of the core member; a plunger disengageably engageable with said mold sections in their closed position aforesaid to seal the resultant mold cavity with said paired conductors captured therein and with said plunger applying pressure to said paired conductors to assist, at least, and to maintain penetration of said contact points into respective conductors to establish electrical connection therewith, and means for injecting molding material into said cavity while the plunger maintains pressure on said conductors as aforesaid.
Claim 2
Dependent Claim
219 words
Apparatus for molding lamp sockets onto paired insulated conductors comprising: a core movable between a loading station and a molding station, said core member having slots for receiving and maintaining a pair of pointed electrical contacts in spaced relation with their points exposed for penetration into respective conductors to establish electrical connection therewith and with their margins extending from said core member for embedment in molding material; means at said loading station for locating said contacts in said slots as aforesaid; mold sections at said molding station movable between a closed position in which they surround said core member, cooperating with it to form a mold cavity of annular configuration for receiving molding material, and an open position in which said mold sections are separated from each other and from said core member enabling release of the molded socket and removal of the core member; a plunger disengageably engageable with said mold sections in their closed position aforesaid to seal the resultant mold cavity with said paired conductors captured therein and with said plunger applying pressure to said paired conductors to assist, at least, and to maintain penetration of said contact points into respective conductors to establish electrical connection therewith, and means for injecting molding material into said cavity while the plunger maintains pressure on said conductors as aforesaid.
Claim 3
Dependent Claim
26 words
Apparatus as defined in claim 1 including; a turntable mounting said core member for transporting it sequentially and cyclically between said loading, molding, and loading stations,
Claim 4
Dependent Claim
23 words
Apparatus as defined in claim 2 including; a plurality of core members mounted on said turntable and respectively advanceable thereby between said stations.
Claim 5
Dependent Claim
34 words
Apparatus as defined in claim 3 wherein: said core members are spaced around the periphery of said turntable and capable of being respectively and simultaneously disposed at a respective one of the stations aforesaid.
Claim 6
Dependent Claim
54 words
Apparatus as defined in claim 1 wherein: said plunger and core member at said molding station are co-axial and axially movable relative to each other to procure clamping of the conductors and contacts between them effecting and maintaining penetration of said contacts points in said conductors as aforesaid pending completion of the molding cycle.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |