US3574888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam molding apparatus
Assignee: Motor Wheel Corp
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Filing: 1968-11-27
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Granted: 1971-04-13
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Expires: 1988-11-27
Abstract
Abstract This invention relates to an apparatus for producing molded foam articles having a conveyor system to move a series of molds from a stripping station through a filling station and then return the mold to the stripping station with the foaming apparatus being suspended above the filling station and being movable to another filling station while the molds are being returned to their original position.
Inventors
- 👤 Jack E Holaday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:12
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/38; B29C44/388; B29C33/00; B29C33/34
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
115 words
In a foamed article producing apparatus having a mold conveyor system to move a series of molds from a stripping station through a filling station and then return said molds through the filling station to the stripping station, said filling station having a means for suspending a mold filling means above the molds, said mold filling means having a means associated with the mold as the mold moves to the filling station to activate the mold filling means to control the amount of foamable material added to the mold but to maintain the mold filling means in the inactive position as the molds pass through the filling station on the return to the stripping station.
Claim 2
Dependent Claim
115 words
In a foamed article producing apparatus having a mold conveyor system to move a series of molds from a stripping station through a filling station and then return said molds through the filling station to the stripping station, said filling station having a means for suspending a mold filling means above the molds, said mold filling means having a means associated with the mold as the mold moves to the filling station to activate the mold filling means to control the amount of foamable material added to the mold but to maintain the mold filling means in the inactive position as the molds pass through the filling station on the return to the stripping station.
Claim 3
Dependent Claim
36 words
The apparatus of claim 1 wherein the mold filling means moves as a unit with the mold while the mold receives the foamable material and then returns to its original position to await the next mold.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |