UST869007I4 - Apparatus and process for extruding elastomeric material - Google Patents
Apparatus and process for extruding elastomeric material Download PDFInfo
- Publication number
- UST869007I4 UST869007I4 US869007DH UST869007I4 US T869007 I4 UST869007 I4 US T869007I4 US 869007D H US869007D H US 869007DH US T869007 I4 UST869007 I4 US T869007I4
- Authority
- US
- United States
- Prior art keywords
- elastomeric material
- extruding
- extrusion
- extruding elastomeric
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/06—Rod-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/46—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using vanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/05—Filamentary, e.g. strands
Definitions
- the apparatus that can be used to carry out this process is an extruder made of a housing having a bore and an extrusion cavity with an extrusion orifice.
- the rotatable shaft is in the bore and is aligned with the extrusion orifice terminating in the extrusion cavity with a geometrically shaped rotor which defines a narrow annular passageway between the exterior surface of the rotor and the interior surface of the housing.
- This process of friction heating an elastomeric material to its curing temperature also softens the material permitting a controllable discharge of the extrudate through the extrusion orifice.
- This process can be used to provide an outer coating of elastomeric material on a wire by axially drawing the wire through the center of the die orifice concurrently with the extrusion of an elastomeric material.
Description
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DEFENSIVE PULICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Oflice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED DECEMBER 16, 1969 T869,007 APPARATUS AND PROCESS FOR EXTRUDING ELASTOMERIC MATERIAL Martin Luther Brown, Elkton, Md., assiguor to E. I. du
Pont de Nemours and Company, Wilmington, Del., a corporation of Delaware Original application Oct. 22, 1965, Ser. No. 501,552.
Divided and this application Dec. 26, 1968, Ser.
Int. Cl. B29f 3/10, 3/012 U.S. Cl. 264-174 1 Sheet Drawing. 11 Pages Specification A process for sequentially heating to curing temperature and extruding a fast-curing elastomeric compound by introducing a raw stock directly into an extrusion head where the stock is heated to curing temperatures with heat generated :by shearing the stock between a rotor housing and a rotor having a relief pattern on its surface and rotating at ZOO-2,000 r.p.m. then extruding the heated elastomer through a die.
The apparatus that can be used to carry out this process is an extruder made of a housing having a bore and an extrusion cavity with an extrusion orifice. The rotatable shaft is in the bore and is aligned with the extrusion orifice terminating in the extrusion cavity with a geometrically shaped rotor which defines a narrow annular passageway between the exterior surface of the rotor and the interior surface of the housing.
This process of friction heating an elastomeric material to its curing temperature also softens the material permitting a controllable discharge of the extrudate through the extrusion orifice. This process can be used to provide an outer coating of elastomeric material on a wire by axially drawing the wire through the center of the die orifice concurrently with the extrusion of an elastomeric material.
Dec. V16, 1969 M. L. BROWN $369,097
APPARATUS AND PROCESS FOR EXTRUDING ELASTOMERIC MATERIAL Original Filed Oct. 22, 1965 INVENTOR :5; MARTIN LUTHER BROWN ATTORNEY
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US81042068A | 1968-12-26 | 1968-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST869007I4 true UST869007I4 (en) | 1969-12-16 |
Family
ID=25203807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US869007D Pending UST869007I4 (en) | 1968-12-26 | 1968-12-26 | Apparatus and process for extruding elastomeric material |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST869007I4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438858A (en) * | 1991-06-19 | 1995-08-08 | Gottlieb Guhring Kg | Extrusion tool for producing a hard metal rod or a ceramic rod with twisted internal boreholes |
-
1968
- 1968-12-26 US US869007D patent/UST869007I4/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438858A (en) * | 1991-06-19 | 1995-08-08 | Gottlieb Guhring Kg | Extrusion tool for producing a hard metal rod or a ceramic rod with twisted internal boreholes |
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