Patent US2972349A successfully refreshed from Google Patents.
US3278656A
Expired / Lapsed
US
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Method of moulding plastic containers by electrostatic deposition
Assignee: Individual
•
Filing: 1963-07-01
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Granted: 1966-10-11
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Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Peter D J Dicks
- 👤 William M Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:08
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/08; B05; B05B; B05B5/00; B05B5/08; B29C33/00; B29C33/44; B29C33/46; B29C41/006; B65; B65D; B65D77/00; B65D77/22; B65D77/24; B65D77/26; B65D85/00; B65D85/18; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0822; B29K; B29K2105/00; B29K2105/25; B29K2105/251; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24992
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A METHOD OF MOULDING PLASTIC CONTAINERS FROM AN INSULATING PLASTIC MATERIAL THAT WILL ACCEPT AN ELECTROSTATIC CHARGE AND THAT CAN BE CURED AS A BODY IN POWDERED FORM BY THE APPLICATION OF HEAT WITHOUT PRESSURE, COMPRISING THE STEPS OF FORMING A MOULD HAVING A MOULDING SURFACE THAT IS ADAPTED TO ATTRACT AN ELECTROSTATICALLY CHARGED PARTICLE WITH A CONTOUR OF THE CONTAINER TO BE MOULDED, THE MARGINAL AREA AT HE EDGE OF SAID MOULDING SURFACE BEING AN INSULATING MATERIAL TO REJECT CHARGED PARTICLES, POWERDING THE PLASTIC MATERIAL, COATING A LAYER OF SAID PLASTIC MATERIAL ON SAID MOULD MOULDING SURFACE BY ELECTROSTATICALLY CHARGING THE PARTICLES OF PLASTIC MATERIAL AND SPRAYING FROM UNDERNEATH SAID MOULDING SURFACE ON TO THE MOULD MOULDING SURFACE, CURING SAID LAYER OF POWDERED MATERIAL TO FORM A MOULDED ARTICLE AND, AFTER COOLING, PARTING SAID MOULDED ARTICLE FROM SAID MOULDING SURFACE.
Claim 2
Independent Claim
141 words
A METHOD OF MOULDING PLASTIC CONTAINERS FROM AN INSULATING PLASTIC MATERIAL THAT WILL ACCEPT AN ELECTROSTATIC CHARGE AND THAT CAN BE CURED AS A BODY IN POWDERED FORM BY THE APPLICATION OF HEAT WITHOUT PRESSURE, COMPRISING THE STEPS OF FORMING A MOULD HAVING A MOULDING SURFACE THAT IS ADAPTED TO ATTRACT AN ELECTROSTATICALLY CHARGED PARTICLE WITH A CONTOUR OF THE CONTAINER TO BE MOULDED, THE MARGINAL AREA AT HE EDGE OF SAID MOULDING SURFACE BEING AN INSULATING MATERIAL TO REJECT CHARGED PARTICLES, POWERDING THE PLASTIC MATERIAL, COATING A LAYER OF SAID PLASTIC MATERIAL ON SAID MOULD MOULDING SURFACE BY ELECTROSTATICALLY CHARGING THE PARTICLES OF PLASTIC MATERIAL AND SPRAYING FROM UNDERNEATH SAID MOULDING SURFACE ON TO THE MOULD MOULDING SURFACE, CURING SAID LAYER OF POWDERED MATERIAL TO FORM A MOULDED ARTICLE AND, AFTER COOLING, PARTING SAID MOULDED ARTICLE FROM SAID MOULDING SURFACE.
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |