US3717427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic apparatus for working plastic material
Assignee: Individual
•
Filing: 1970-12-03
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Granted: 1973-02-20
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Expires: 1990-12-03
Abstract
Abstract A plastic charge which may be in granular form, in the form of pellets, or in the form of a ''''fluff'''' material, is placed into a mold, which is closed off by means of a cover, mandrel or the like, for forming, and a bias force pressure applied thereto. High level sonic energy is generated by means of an orbiting mass oscillator which drives a resonant vibration system, the sonic energy being applied to the plastic charge to cause it to liquefy and flow uniformly throughout the mold to form a high strength plastic end product.
Inventors
- 👤 A Bodine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:24
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/32; B29C43/56; B01; B01J; B01J19/00; B01J19/08; B01J19/10; B29C2791/00; B29C2791/004; B29C2791/008; B29K; B29K2105/00; B29K2105/25; B29K2105/251
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
103 words
A device for forming plastic parts from plastic charge material comprising: mold member means for receiving the charge material, pressure applying means for providing a bias force against said chargE material, an orbiting mass oscillator, a resonant vibration system including one of said afore mentioned means coupled to said oscillator to receive the vibrational output thereof, and means for driving said oscillator at a frequency such as to set up resonant elastic vibration of said vibration system whereby vibrational energy is passed from said vibration system to said charge material to mix and plasticize said material to form a uniform plastic mass therefrom.
Claim 2
Independent Claim
103 words
A device for forming plastic parts from plastic charge material comprising: mold member means for receiving the charge material, pressure applying means for providing a bias force against said chargE material, an orbiting mass oscillator, a resonant vibration system including one of said afore mentioned means coupled to said oscillator to receive the vibrational output thereof, and means for driving said oscillator at a frequency such as to set up resonant elastic vibration of said vibration system whereby vibrational energy is passed from said vibration system to said charge material to mix and plasticize said material to form a uniform plastic mass therefrom.
Claim 3
Independent Claim
103 words
A device for forming plastic parts from plastic charge material comprising: mold member means for receiving the charge material, pressure applying means for providing a bias force against said chargE material, an orbiting mass oscillator, a resonant vibration system including one of said afore mentioned means coupled to said oscillator to receive the vibrational output thereof, and means for driving said oscillator at a frequency such as to set up resonant elastic vibration of said vibration system whereby vibrational energy is passed from said vibration system to said charge material to mix and plasticize said material to form a uniform plastic mass therefrom.
Claim 4
Independent Claim
103 words
A device for forming plastic parts from plastic charge material comprising: mold member means for receiving the charge material, pressure applying means for providing a bias force against said chargE material, an orbiting mass oscillator, a resonant vibration system including one of said afore mentioned means coupled to said oscillator to receive the vibrational output thereof, and means for driving said oscillator at a frequency such as to set up resonant elastic vibration of said vibration system whereby vibrational energy is passed from said vibration system to said charge material to mix and plasticize said material to form a uniform plastic mass therefrom.
Claim 5
Dependent Claim
37 words
The device of claim 1 wherein said vibration system comprises an elongated torsional resonator member, said pressure applying means comprising a mandrel positioned in said mold member means, said mandrel being coupled to said torsional resonator member.
Claim 6
Dependent Claim
77 words
The device of claim 1 wherein said vibration system comprises an elongated torsional resonator member, said pressure applying means comprising a jack member means driving said mold member, a mandrel positioned in said mold member means and connected to one end of said resonator member, said oscillator being connected to the other end of said resonator member and stop means connected to said resonator member for arresting movement of said resonator member along the longitudinal axis thereof.
Claim 7
Dependent Claim
15 words
The device of claim 1 wherein said resonant vibration system comprises said mold member means.
Claim 8
Dependent Claim
47 words
The device of claim 1 wherein said resonant vibration system comprises an elongated bar member, a standing wave pattern being set up in said bar member, and further including means for supporting said bar member at points therealong where the nodes of said standing wave pattern appear.
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) | 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 |