US4624810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of a solid stick in a container
Assignee: Church and Dwight Co Inc
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Filing: 1984-08-29
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Granted: 1986-11-25
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Expires: 2004-08-29
Abstract
Abstract A solid stick composition, in a container, is moved through a protective tunnel wherein the stick is cooled to effect solidification, remelted to fill any void in the stick, cooled to solidify, and polished, by heating and cooling, with filtered air flowing through the tunnel to remove heat therefrom.
Inventors
- 👤 Frederick P. Sisbarro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:40
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/24; F27B9/243; F27B9/06; F27B9/062; F27B9/066
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
155 words
A process for treating a solid antiperspirant or deodorant stick composition in a container, comprising: moving a container including the solid stick composition through a protective tunnel between an inlet and outlet for said tunnel; maintaining said tunnel at a temperature below the melting temperature of the solid stick composition by introducing air into and withdrawing air from the tunnel; effecting controlled localized heating of the solid stick composition at at least two spaced heating stations in the tunnel, said heating being effected to remelt a portion of the solid stick composition only at a heating station; and cooling the stick composition within the tunnel by the circulating air to solidify a liquid portion of the solid stick composition prior to each of said at least two heating stations and prior to the outlet for said tunnel, whereby there is an overall cooling effect in the tunnel and controlled localized heating at the heating stations.
Claim 2
Dependent Claim
155 words
A process for treating a solid antiperspirant or deodorant stick composition in a container, comprising: moving a container including the solid stick composition through a protective tunnel between an inlet and outlet for said tunnel; maintaining said tunnel at a temperature below the melting temperature of the solid stick composition by introducing air into and withdrawing air from the tunnel; effecting controlled localized heating of the solid stick composition at at least two spaced heating stations in the tunnel, said heating being effected to remelt a portion of the solid stick composition only at a heating station; and cooling the stick composition within the tunnel by the circulating air to solidify a liquid portion of the solid stick composition prior to each of said at least two heating stations and prior to the outlet for said tunnel, whereby there is an overall cooling effect in the tunnel and controlled localized heating at the heating stations.
Claim 3
Dependent Claim
23 words
The process of claim 1 wherein air is withdrawn from the tunnel at a plurality of points along the length of the tunnel.
Claim 4
Dependent Claim
14 words
The process of claim 2 wherein air is conditioned and recirculated through the tunnel.
Claim 5
Dependent Claim
20 words
The process of claim 3 wherein the air is conditioned to maintain a substantially constant temperature in the protective tunnel.
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) | 1989-11-24 | 1990-05-26 | 1990-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-24 | 1994-05-26 | 1994-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-24 | 1998-05-26 | 1998-11-25 | $7700.00 | Window Closed / Lapsed |