US3717428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold base adapter
Assignee: USI Corp
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Filing: 1971-03-08
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Granted: 1973-02-20
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Expires: 1991-03-08
Abstract
Abstract An adapter plate system and corresponding mold bases for use with injection molding assemblies to secure the mold bases to varying press platens which comprises two adapter plates having a plurality of apertures therein so that they can be secured to various standard press platens, the plates further having means for aligning one half of a mold base therewith and means for fixedly securing each half to each plate.
Inventors
- 👤 J Andras
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:41
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/1742; B29C45/1744
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
210 words
An injection molding assembly comprising: a mold base comprising separate ejector and sprue portions, first and second press platens, first and second adapter plates for attachment to said first and second platens respectively, each of said adapter plates having a plurality of sets of differently located threaded apertures formed therein, each of said aperture sets being arranged to mate with apertures on a different press platen, said press platens each having a set of threaded apertures formed therein which match one of the sets of apertures on the corresponding adapter plates, a plurality of bolts for securing said first and second adapter plates to said first and second press platens respectively, said bolts being fitted in the matching sets of apertures in said platens and adapter plates, said adapter plates each having a pair of alignment dowel pins extending therefrom, the pins of each pair having different diameters from each other, said ejector and sprue portions of said mold base each having apertures formed therein for receiving the dowel pins of said first and second adapter plates respectively, and bolt means for removably securing said ejector and sprue portions to said first and second adapter plates respectively, said dowel pins aligning said ejector and sprue portions with said adapter plates.
Claim 2
Dependent Claim
210 words
An injection molding assembly comprising: a mold base comprising separate ejector and sprue portions, first and second press platens, first and second adapter plates for attachment to said first and second platens respectively, each of said adapter plates having a plurality of sets of differently located threaded apertures formed therein, each of said aperture sets being arranged to mate with apertures on a different press platen, said press platens each having a set of threaded apertures formed therein which match one of the sets of apertures on the corresponding adapter plates, a plurality of bolts for securing said first and second adapter plates to said first and second press platens respectively, said bolts being fitted in the matching sets of apertures in said platens and adapter plates, said adapter plates each having a pair of alignment dowel pins extending therefrom, the pins of each pair having different diameters from each other, said ejector and sprue portions of said mold base each having apertures formed therein for receiving the dowel pins of said first and second adapter plates respectively, and bolt means for removably securing said ejector and sprue portions to said first and second adapter plates respectively, said dowel pins aligning said ejector and sprue portions with said adapter plates.
Claim 3
Dependent Claim
210 words
An injection molding assembly comprising: a mold base comprising separate ejector and sprue portions, first and second press platens, first and second adapter plates for attachment to said first and second platens respectively, each of said adapter plates having a plurality of sets of differently located threaded apertures formed therein, each of said aperture sets being arranged to mate with apertures on a different press platen, said press platens each having a set of threaded apertures formed therein which match one of the sets of apertures on the corresponding adapter plates, a plurality of bolts for securing said first and second adapter plates to said first and second press platens respectively, said bolts being fitted in the matching sets of apertures in said platens and adapter plates, said adapter plates each having a pair of alignment dowel pins extending therefrom, the pins of each pair having different diameters from each other, said ejector and sprue portions of said mold base each having apertures formed therein for receiving the dowel pins of said first and second adapter plates respectively, and bolt means for removably securing said ejector and sprue portions to said first and second adapter plates respectively, said dowel pins aligning said ejector and sprue portions with said adapter plates.
Claim 4
Dependent Claim
210 words
An injection molding assembly comprising: a mold base comprising separate ejector and sprue portions, first and second press platens, first and second adapter plates for attachment to said first and second platens respectively, each of said adapter plates having a plurality of sets of differently located threaded apertures formed therein, each of said aperture sets being arranged to mate with apertures on a different press platen, said press platens each having a set of threaded apertures formed therein which match one of the sets of apertures on the corresponding adapter plates, a plurality of bolts for securing said first and second adapter plates to said first and second press platens respectively, said bolts being fitted in the matching sets of apertures in said platens and adapter plates, said adapter plates each having a pair of alignment dowel pins extending therefrom, the pins of each pair having different diameters from each other, said ejector and sprue portions of said mold base each having apertures formed therein for receiving the dowel pins of said first and second adapter plates respectively, and bolt means for removably securing said ejector and sprue portions to said first and second adapter plates respectively, said dowel pins aligning said ejector and sprue portions with said adapter plates.
Claim 5
Dependent Claim
27 words
The adapter plates of claim 1 wherein each plate has two groups of four threaded apertures each, each group alignable with corresponding apertures in differing press platens.
Claim 6
Dependent Claim
65 words
The adapter plates of claim 1 further comprising: recesses formed in each plate on a side thereof co-alignable with corresponding recesses in the platen to which the plates are attachable, and a separate locating ring capable of being fixedly secured partially within the recesses of said plates, said rings engageable with the corresponding recesses in said platen when said plates are attached to said platen.
Claim 7
Dependent Claim
23 words
The adapter plates of claim 1 further comprising: two oval holes provided in said first plate and adapted to receive stripper bars therethrough.
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |