Patent US3654179A successfully refreshed from Google Patents.
US3696840A
Expired / Lapsed
US
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Adaptor for angularly diverting visco-elastic melt flow
Assignee: Pennwalt Corp
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Filing: 1970-12-22
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Granted: 1972-10-10
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Expires: 1990-12-22
Abstract
Abstract An adaptor for diverting the flow direction of a visco-elastic melt stream employs a deflector cover plate which is detachably secured to a block-like body having angularly arranged channels emerging through an inclined surface. The cover plate includes a centrally disposed outwardly projecting shoulder which is received in a complementary recess formed about an imaginary geometric figure circumscribing the emergent channels. An arcuately cupped surface formed in the shoulder has a lip congruent with the imaginary geometric figure.
Inventors
- 👤 Oliver Randolph Odhner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:31
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/03
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
187 words
An adaptor for diverting a visco-elastic melt stream through an angular path comprising: a body portion including a first channel of circular cross section for receiving the melt stream from a plasticizing source, a second channel of circular cross section for delivering the melt stream in a second direction to a die, and a substantially flat surface inclined with respect to said first and second channels and equiangularly disposed to the axes thereof such that said channels emerge through said flat surface; said inclined flat surface having a recessed portion therein marginally disposed about an imaginary closed geometric figure circumscribing both of said channels where they emerge through said flat surface; a cover including a flat flange portion, a centrally disposed outwardly projecting shoulder portion complementary with said recessed portion, and an arcuately cupped deflector surface within said shoulder portion, said arcuately cupped surface having a circumferential lip congruent with the imaginary closed geometric figure Defined about said channels and directing the flow of the melt stream in a smooth, arcuate contour; and means for detachably securing said cover upon the inclined flat surface of said body.
Claim 2
Dependent Claim
187 words
An adaptor for diverting a visco-elastic melt stream through an angular path comprising: a body portion including a first channel of circular cross section for receiving the melt stream from a plasticizing source, a second channel of circular cross section for delivering the melt stream in a second direction to a die, and a substantially flat surface inclined with respect to said first and second channels and equiangularly disposed to the axes thereof such that said channels emerge through said flat surface; said inclined flat surface having a recessed portion therein marginally disposed about an imaginary closed geometric figure circumscribing both of said channels where they emerge through said flat surface; a cover including a flat flange portion, a centrally disposed outwardly projecting shoulder portion complementary with said recessed portion, and an arcuately cupped deflector surface within said shoulder portion, said arcuately cupped surface having a circumferential lip congruent with the imaginary closed geometric figure Defined about said channels and directing the flow of the melt stream in a smooth, arcuate contour; and means for detachably securing said cover upon the inclined flat surface of said body.
Claim 3
Dependent Claim
26 words
The adaptor of claim 1 wherein the axes of said channels are oriented at right angles to each other and are in adjacently spaced parallel planes.
Claim 4
Dependent Claim
23 words
The adaptor of claim 2 wherein the channels are tangent to each other at their position of intersection with said flat inclined surface.
Claim 5
Dependent Claim
22 words
The adaptor of claim 3 wherein the shoulder portion is circular in plan configuration, and the arcuately cupped portion therein is spheroidal.
Claim 6
Dependent Claim
49 words
The adaptor of claim 4 wherein the closed imaginary geometric figure is a circle, and S-shaped curved line defined by the tangent between the channel openings maintained as a sharp edge, and the remainder of the zone gently contoured inwardly to define a pair of complementary tear drop projections.
Claim 7
Dependent Claim
52 words
The adaptor of claim 2 wherein the axes are spaced apart from each other at their intersection with the inclined flat surface such that the inboard walls of the respective channels are spaced apart from each other to define a land portion therebetween, and the cupped deflector surface is cylindrical in configuration.
Claim 8
Dependent Claim
50 words
The adaptor of claim 1 wherein said axes are in a common plane and the inboard walls of the respective channels are spaced apart from each other at their intersection with the inclined flat surface to define a land portion therebetween, and the cupped deflector surface is toroidal in configuration.
Claim 9
Dependent Claim
38 words
The adaptor of claim 1 wherein said axes are in a common plane and the zones of emergence of the channels through said inclined flat surface overlap each other, and the cupped deflector surface is ellipsoidal in configuration.
Claim 10
Dependent Claim
59 words
The adaptor of claim 1 wherein said axes are in spaced apart planes at their intersection with the inclined flat surface and the inboard walls of the respective channels are spaced apart from each other along a skew line in said inclined surface to define an oblique land portion therebetween, and said cupped deflector surface is toroidal in configuration.
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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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |