Patent US4356133A successfully refreshed from Google Patents.
US4356133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical process in a medium connected to a rotating body
Assignee: Imperial Chemical Industries Ltd
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Filing: 1979-02-21
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Granted: 1982-10-26
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Expires: 1999-02-21
Abstract
Abstract A reactant medium is transported across the surface of a body rotating at high speed and discharged therefrom by centrifugal force. A chemical reaction is caused to occur in the medium after the said discharge while the reactant medium is still connected to the surface of the body.
Inventors
- 👤 Geoffrey Cowen
- 👤 Philip Norton-Berry
- 👤 Margaret L. Steel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:49
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/18; B; B01; B01J; B01J10/00; B01J10/02; B01J19/00; B01J19/08; B01J19/081; B01J19/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
83 words
A chemical process comprising mixing reactants to form a reactant medium, moving the medium as a film across a surface of rotation on a rotating body by centrifugal force substantially without chemical reaction taking place between the reactants, discharging the reactant medium from the periphery of the rotating surface as a film or filaments which for an initial period after discharge from said surface remain continuous with the film still moving across said surface, and chemically reacting said reactants during said initial period.
Claim 2
Dependent Claim
83 words
A chemical process comprising mixing reactants to form a reactant medium, moving the medium as a film across a surface of rotation on a rotating body by centrifugal force substantially without chemical reaction taking place between the reactants, discharging the reactant medium from the periphery of the rotating surface as a film or filaments which for an initial period after discharge from said surface remain continuous with the film still moving across said surface, and chemically reacting said reactants during said initial period.
Claim 3
Dependent Claim
32 words
A chemical process as in claim 1 wherein at least part of the surface of rotation is inclined to its axis of rotation at an angle of less than a right angle.
Claim 4
Dependent Claim
31 words
A chemical process as in claim 1 or claim 2 wherein the reactant medium consists essentially of fluid materials containing no solid phase when discharged from the surface of the body.
Claim 5
Dependent Claim
21 words
A chemical process as in claim 1 or claim 2 wherein a cross-linked polymeric product is formed in the reactant medium.
Claim 6
Dependent Claim
30 words
A chemical process as in claim 1 or claim 2 wherein a gaseous product is formed in the reactant medium requiring disengagement from the liquid phase of the reactant medium.
Claim 7
Dependent Claim
23 words
A chemical process as in claim 1 or claim 2 wherein the chemical reaction in the reactant medium involves a rapid thermal exchange.
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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) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |