Valve stop
0 Assignments
0 Petitions
Accused Products
Abstract
A stop (20) for a dispensing valve (10) is adapted to be moveable between a first position abutting a valve surface (28) to seal an opening (30), and a second position spaced from the surface (28) to open the opening (30). The stop (20) has a base (52), and a sealing member (54) connected to the base (52) by a hinge member (60). The sealing member (54) has a sealing surface (66) at a distal end. The sealing member (54) extends away from the base (52) in a first molded position (MP). The sealing member (66) is foldable at the hinge member (60) to a second position (FP) wherein the sealing surface (66) faces generally towards the base (52). The method of making the valve stop (20) includes injection molding the stop (20) such that the sealing surface (66) is free of split-lines.
71 Citations
28 Claims
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1-15. -15. (Cancelled).
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16. A stop for a dispensing valve, the dispensing valve having a surface defining an opening, the stop adapted to be moveable between a first position abutting the surface to seal the opening and a second position spaced from the surface to open the opening, the stop comprising a base adapted to be connected to the valve and a sealing member having a sealing surface adapted to abut the valve surface, the sealing surface being void of a split-line.
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17. A stop for a dispensing valve, the dispensing valve having a surface defining an opening, the stop adapted to be moveable between a first position abutting the surface to seal the opening and a second position spaced from the surface to open the opening, the stop comprising:
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a base adapted to be connected to the valve;
a sealing member being connected to the base by a hinge member, the sealing member having a frustoconical outer surface, the sealing member having a sealing surface at a distal end, the sealing member extending away from the base in a first position wherein the sealing surface faces generally away from the base, the sealing member being foldable at the hinge member to a second position wherein the sealing surface faces generally towards the base, a portion of the sealing member adapted to pass through the opening wherein the sealing surface is adapted to abut the valve surface, and wherein the sealing surface is substantially smooth and even across its entire surface. - View Dependent Claims (18)
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19. A method of making a stop for a dispensing valve, the method comprising the steps of:
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providing a mold having at least two sections, a portion of the mold defining a sealing surface of the stop;
injecting a molten material into the mold in a direction defining a line of draw, wherein the portion of the mold defining the sealing surface is in the line of draw. - View Dependent Claims (20, 21)
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22. A method of making a stop for a dispensing valve, the method comprising the steps of:
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providing a mold defined by at least two spaced mold sections, the sections collectively defining a base portion and a frustoconical sealing member portion defining a sealing surface against an entire one of the mold sections;
injecting a molten material into the mold in a direction defining a line of draw, wherein the sealing surface is in the line of draw;
solidifying the material in the mold to define the stop;
ejecting the stop from the mold; and
folding the sealing member towards the base. - View Dependent Claims (23, 24)
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25. A stop for a dispensing valve, the dispensing valve having a surface defining an opening, the stop adapted to be moveable between a first position abutting the surface to seal the opening and a second position spaced from the surface to open the
opening, the stop being formed in an injection-molding process, the stop comprising a base adapted to be connected to the valve and a sealing member having a sealing surface adapted to abut the valve surface, the sealing surface being void of a split-line from the injection molded process.
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26. A stop for a dispensing valve, the dispensing valve having a surface defining an opening, the stop adapted to be moveable between a first position abutting the surface to seal the opening and a second position spaced from the surface to open the opening, the stop being formed in an injection-molding process, the stop comprising:
- a base adapted to be connected to the valve;
a sealing member being connected to the base by a hinge member, the sealing member having a frustoconical outer surface, the sealing member having a sealing surface at a distal end, the sealing member extending away from the base in a first molded position wherein the sealing surface faces generally away from the base, the sealing member being foldable at the hinge member to a second position wherein the sealing surface faces generally towards the base, a portion of the sealing member adapted to pass through the opening wherein the sealing surface is adapted to abut the valve surface, and wherein the sealing surface is substantially smooth and even across its entire surface.
- a base adapted to be connected to the valve;
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27. A stop for a dispensing valve, the dispensing valve having a surface defining an opening, the stop adapted to be moveable between a first position abutting the surface to seal the opening and a second position spaced from the surface to open the opening, the stop comprising:
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a base adapted to be connected to the valve;
a sealing member being connected to the base by a hinge member, the sealing member having a sealing surface at a distal end, the sealing member extending away from the base in a first position wherein the sealing surface faces generally away from the base, and wherein the sealing member extends radially outward from the hinge member to the sealing surface when the sealing member is in the first position, the sealing member being foldable at the hinge member to a second position wherein the sealing surface faces generally towards the base. - View Dependent Claims (28)
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Specification