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US4680003A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for the production of moldings from flowable reactive components

Assignee: Bayer AG
•
Filing: 1985-12-20
•
Granted: 1987-07-14
•
Expires: 2005-12-20
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Abstract

Abstract Apparatus for producing moldings from flowable reactive components comprising (a) a mold assembly having two halves surrounding a mold cavity, (b) a mixing device for combining said reactive components mounted on said mold assembly, said mixing device having a mixing chamber, (c) a supply channel in said assembly for supplying said components from said mixing chamber to said mold cavity, (d) a throttle device located between said mixing chamber and said mold cavity, said throttle device capable of moving into and out of said supply channel in a direction transverse to the orientation of said supply channel, thereby forming a throttle zone in said supply channel, (e) a relaxation chamber located in said supply channel between said throttle device and said mold cavity, said apparatus further characterized in that the dividing plane which separates the mold assembly into halves extends through said supply channel, said throttle zone and said relaxation chamber.

Inventors

  • 👤 Klaus Schulte
  • 👤 Heinrich Ersfeld

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 20:57
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/3442; B29C67/00; B29C67/24; B29C67/246

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 152 words
An apparatus for producing moldings from flowable reactive components comprising (a) a mold assembly having two halves surrounding a mold cavity, (b) a mixing device for combining said reactive components mounted on said mold assembly, said mixing device having a mixing chamber, (c) a supply channel in said assembly for supplying said components from said mixing chamber to said mold cavity, (d) a throttle device located between said mixing chamber and said mold cavity, said throttle device capable of moving into and out of said supply channel in a direction transverse to the orientation of said supply channel, thereby forming a throttle zone in said supply channel, (e) a relaxation chamber located in said supply channel between said throttle device and said mold cavity, said apparatus further characterized in that the dividing plane which separates the mold assembly into halves extends through said supply channel, said throttle zone and said relaxation chamber.
Claim 2
Independent Claim 152 words
An apparatus for producing moldings from flowable reactive components comprising (a) a mold assembly having two halves surrounding a mold cavity, (b) a mixing device for combining said reactive components mounted on said mold assembly, said mixing device having a mixing chamber, (c) a supply channel in said assembly for supplying said components from said mixing chamber to said mold cavity, (d) a throttle device located between said mixing chamber and said mold cavity, said throttle device capable of moving into and out of said supply channel in a direction transverse to the orientation of said supply channel, thereby forming a throttle zone in said supply channel, (e) a relaxation chamber located in said supply channel between said throttle device and said mold cavity, said apparatus further characterized in that the dividing plane which separates the mold assembly into halves extends through said supply channel, said throttle zone and said relaxation chamber.
Claim 3
Dependent Claim 14 words
The apparatus of claim 1, wherein the cross-section of the throttle zone is adjustable.
Claim 4
Dependent Claim 25 words
The apparatus of claim 2, wherein the throttle zone is formed by a slider, the hoisting width of which is adjustable, and a counter surface.
Claim 5
Dependent Claim 23 words
The apparatus of claim 1, wherein the relaxation chamber has the shape of a spherical dome extending beyond the cross-section of the supply
Claim 6
Dependent Claim 26 words
The apparatus of claim 4, wherein the periphery lines of the dome and the slider intersect each other on the side pointing towards the mixing chamber.

References Cited (Backward Citations)

US2313004A Cited
US3728053A Cited
US3819313A Cited
US3924989A Cited
US3897929A Cited
US4067673A Cited
US4141470A Cited
US4446088A Cited
DE3216647A1 Cited
US4582224A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-07-13 1991-01-12 1991-07-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-07-13 1995-01-12 1995-07-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-07-13 1999-01-12 1999-07-14 $7700.00 Window Closed / Lapsed

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