Invention Grant
- Patent Title: Method and apparatus for curing cylindrical polymeric objects
- Patent Title (中): 用于固化圆柱形聚合物体的方法和设备
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Application No.: US598875Application Date: 1996-02-09
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Publication No.: US5795536APublication Date: 1998-08-18
- Inventor: Andrew J. Gaworowski , Darren E. Hercyk , Roger D. Meadows , Herman D. Sheron, Jr.
- Applicant: Andrew J. Gaworowski , Darren E. Hercyk , Roger D. Meadows , Herman D. Sheron, Jr.
- Applicant Address: SC Spartanburg
- Assignee: Reeves Brothers, Inc.
- Current Assignee: Reeves Brothers, Inc.
- Current Assignee Address: SC Spartanburg
- Main IPC: B29C33/04
- IPC: B29C33/04 ; B29C35/04 ; B29C43/10 ; B29C43/12
Abstract:
The present invention provides a method and apparatus for the rapid, uniform curing of cylindrical, polymeric objects. The invention provides precise, accurate control of both the curing temperature and pressure because the heating system is independent of the pressurization device. Cylindrical polymeric objects are cured by mounting the object on a cylindrical mandrel, applying substantially uniform pressure to the outer surface of the object, typically through an expandable bladder, and supplying curing is heat directly to the object by circulating a liquid heat transfer medium through the bladder or mandrel. Preferably, the expandable elastomeric bladder is mounted coaxially with the mandrel, and is expanded with a suitable liquid or gas to provide the pressure. The liquid heat transfer medium can be pumped through a passage in the mandrel to apply heat directly to the interior of the object, or the liquid heat transfer medium may be used to expand the bladder and apply the curing heat to the exterior of the object. Alternatively, a combination of both techniques may be employed.
Public/Granted literature
- US5241501A Semiconductor memory device for detecting defective memory cells in a short time Public/Granted day:1993-08-31
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