US3899305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insert frame for insert molding
Assignee: Capsonic Group Inc
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Filing: 1973-07-23
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Granted: 1975-08-12
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Expires: 1993-07-23
Abstract
Abstract An insert frame is disclosed for orienting and supporting inserts for insert molding thereof in injection molded articles. A particularly preferred embodiment is adapted for insert molding electrical leads in injection molded electronic component packages. The integral insert frame comprises a relatively strong carrier strip, barrier supports extending between respective inserts and terminating in respective barriers having readily broken shear points or bridges which extend to and are integral with the lead portions of the frame destined to become the insert leads in the package. The barriers serve as part of the mold assembly during the injection molding of the package and are maintained in desired location during high pressure molding by the barrier supports, carrier strip and location pins in the mold which mate with holes in the carrier strip. Hence, the readily broken barrier shear bridges will be positioned adjacent to the package wall after molding, and breaking forces will not adversely affect the inserts. The remaining portion of the lead frame is separated from the respective leads after molding of the package, e.g. a shell, by merely twisting down the carrier strip portion of the lead frame, thereby causing fracture of the barriers at the juncture of the respective barriers and the adjacent lead portions at the package wall, wherein the respective barriers remain attached to the separated portion of the insert frame, and the respective leads remain securely located in the injection molded package.
Inventors
- 👤 Raymond H Hilgers
- 👤 James P Liautaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:51
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/01; H10W70/05; B; B29; B29C; B29C45/00; B29C45/14; B29C45/14639; B29C45/14655; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121; Y10T428/00; Y10T428/12; Y10T428/12229; Y10T428/12264; Y10T428/12271; Y10T428/1234
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
64 words
AN INTEGRAL INSERT FRAME FOR USE IN MOLDING A PLURALITY OF TERMINALS INTO THE WALL OF AN INJECTION MOLDED HOUSING, SAID FRAME COMPRISING, IN COMBINATION: A PLURALITY OF ELONGATED SPACED-APART TERMINAL PORTIONS ARRANGED FOR INSERTION AT SPACED LOCATIONS THROUGH SAID WALL, A PLURALITY OF BARRIER PORTIONS EXTENDING BETWEEN ADJACENT ONES OF SAID TERMINAL PORTIONS AND ATTACHED THERETO BY MEANS OF FRANGIBLE BRIDGING PORTIONS, AND
Claim 2
Dependent Claim
64 words
AN INTEGRAL INSERT FRAME FOR USE IN MOLDING A PLURALITY OF TERMINALS INTO THE WALL OF AN INJECTION MOLDED HOUSING, SAID FRAME COMPRISING, IN COMBINATION: A PLURALITY OF ELONGATED SPACED-APART TERMINAL PORTIONS ARRANGED FOR INSERTION AT SPACED LOCATIONS THROUGH SAID WALL, A PLURALITY OF BARRIER PORTIONS EXTENDING BETWEEN ADJACENT ONES OF SAID TERMINAL PORTIONS AND ATTACHED THERETO BY MEANS OF FRANGIBLE BRIDGING PORTIONS, AND
Claim 3
Dependent Claim
32 words
An integral insert frame as defined in claim 1 wherein said carrier portion includes indexing means for maintaining said integral insert frame in accurate alignment with respect to said injection molded housing.
Claim 4
Dependent Claim
37 words
An integral insert frame as defined in claim 2 wherein said indexing means comprise a plurality of apertures in said carrier portion for receiving alignment pins fixed with respect to the mold forming said injection molded housing.
Claim 5
Dependent Claim
65 words
An integral insert frame as defined in claim 1 wherein said frame is formed from a sheet of metallic material, said terminal portions comprise strips of said material aligned in a single plane, said barrier portions extend between adjacent edges of said terminal portions and include projecting portions extending away from said wall beyond the distal ends of said terminal portions to said carrier portion.
Claim 6
Dependent Claim
44 words
An integral insert frame as defined in claim 4 wherein said wall is substantially flat, said terminal portions are parallel and extend perpendicularly from said wall, and said barrier portions connect with said terminal portions at locations adjacent the outside surface of said wall.
Claim 7
Dependent Claim
36 words
An integral insert frame as defined in claim 1 wherein each of said barrier portions includes a barrier-forming edge extending paralLel to and adjacent to said wall to assist in maintaining said terminal portions in alignment.
Claim 8
Dependent Claim
38 words
An integral insert frame as defined in claim 6 wherein said barrier portions include projecting portions extending perpendicularly to said housing wall and connecting with said carrier portion at locations beyond the distal ends of said terminal portions.
Claim 9
Dependent Claim
34 words
An integral insert frame as defined in claim 7 wherein said barrier portions connect with said terminal portions at locations adjacent the surface of said wall and said barrier-forming edge extends between said locations.
Claim 10
Dependent Claim
40 words
An integral insert frame as defined in claim 8 wherein said housing wall is substantially flat, said terminal portions are parallel and extend perpendicularly from said wall, and said carrier portion comprises an elongated strip connecting with said projecting portions.
Claim 11
Dependent Claim
35 words
An integral insert frame as defined in claim 1 wherein said bridging portions are dimensioned with respect to said terminal, barrier and carrier portions so as to constitute the most frangible portion of said frame.
Claim 12
Dependent Claim
129 words
An integral insert frame for use in molding a plurality of terminals into the wall of an adjacent molded housing, said frame comprising, in combination: a plurality of elongated spaced-apart terminal portions arranged for insertion at spaced locations through said wall; a plurality of barrier portions extending between adjacent ones of said terminal portions and attached thereto by means of frangible bridging portions, said barrier portions including projecting portions extending perpendicularly to said wall and a barrier-forming edge extending parallel to and adjacent to said wall to assist in maintaining said terminal portions in alignment; and means including a carrier portion attached only to said projecting portions for maintaining said barrier portions in a fixed spatial relationship whereby said terminal portions are aligned for insertion into said housing wall.
Claim 13
Dependent Claim
129 words
An integral insert frame for use in molding a plurality of terminals into the wall of an adjacent molded housing, said frame comprising, in combination: a plurality of elongated spaced-apart terminal portions arranged for insertion at spaced locations through said wall; a plurality of barrier portions extending between adjacent ones of said terminal portions and attached thereto by means of frangible bridging portions, said barrier portions including projecting portions extending perpendicularly to said wall and a barrier-forming edge extending parallel to and adjacent to said wall to assist in maintaining said terminal portions in alignment; and means including a carrier portion attached only to said projecting portions for maintaining said barrier portions in a fixed spatial relationship whereby said terminal portions are aligned for insertion into said housing wall.
Claim 14
Dependent Claim
24 words
An integral insert frame as defined in claim 11 wherein said barrier portions are attached to said terminal portions at locations adjacent said wall.
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) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |