US4022564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding apparatus utilizing planetary gear arrangement
Assignee: Rototron Corp
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Filing: 1975-03-14
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Granted: 1977-05-10
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Expires: 1995-03-14
Abstract
Abstract A molding apparatus which is provided with a frame including a bar acting as a mold support. The bar is pivoted between two angular limits and carries a gear wheel to be pivoted therewith. Planetary gears are engaged with the gear wheel and are displaced pivotally around the gear wheel to be rotated by the same. Molds are coupled to the planetary gears to be rotated therewith. Heating devices are located below the molds to heat the molds as they are being rotated simultaneously about their axes and about the axis of the gear wheel.
Inventors
- 👤 John Dawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:20
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/04; B29C41/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
Molding apparatus comprising a support, means coupled to said support to pivot the support between two angular limits, a gear wheel mounted on said support to be pivoted therewith, planetary gears mounted on said support and engaged with said gear wheel, means mounted on said support to displace said planetary gears around said gear wheel so that the planetary gears are rotated by the latter said gear wheel, molds coupled to said planetary gears to be rotated therewith, and heating means below the molds to heat the molds as the molds are being rotated simultaneously about their axes and the axis of the gear wheel.
Claim 2
Dependent Claim
105 words
Molding apparatus comprising a support, means coupled to said support to pivot the support between two angular limits, a gear wheel mounted on said support to be pivoted therewith, planetary gears mounted on said support and engaged with said gear wheel, means mounted on said support to displace said planetary gears around said gear wheel so that the planetary gears are rotated by the latter said gear wheel, molds coupled to said planetary gears to be rotated therewith, and heating means below the molds to heat the molds as the molds are being rotated simultaneously about their axes and the axis of the gear wheel.
Claim 3
Dependent Claim
26 words
Molding apparatus as claimed in claim 1 comprising further gear wheels, planetary gears, heating means and molds mounted as units at spaced positions along said support.
Claim 4
Dependent Claim
38 words
Molding apparatus as claimed in claim 1 wherein the first and second said means are independently operable so that the molds are rotated at a speed which is independent of the speed at which the support is pivoted.
Claim 5
Dependent Claim
13 words
Molding apparatus as claimed in claim 1 wherein the molds are right parallelepipeds.
Claim 6
Dependent Claim
27 words
Molding apparatus as claimed in claim 1 wherein the means to displace said planetary gears includes a rotatable disc on which the planetary gears are rotatably supported.
Claim 7
Dependent Claim
19 words
Molding apparatus as claimed in claim 2 comprising means for controlling the heating means separately at the respective positions.
Claim 8
Dependent Claim
29 words
Molding apparatus as claimed in claim 1, the first said means comprising an electric motor for pivoting said support and limit switches to limit the pivoting of said support.
Claim 9
Dependent Claim
19 words
Molding apparatus as claimed in claim 1 wherein the heating means is mounted on and pivots with said support.
Claim 10
Dependent Claim
31 words
Molding apparatus as claimed in claim 1 wherein said support is an elongated bar and the heating means is a generally Z - shaped structural member arranged transversely of said bar.
Claim 11
Dependent Claim
20 words
Molding apparatus as claimed in claim 1 wherein said axes of the molds are transverse with respect to said support.
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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |