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US 11,426,749 B2Granted
Valve block assembly for a bottle attachment apparatus
AssigneeBrand GmbH + Co KG
InventorsGünter Hochholzer, Markus Kurz
Life of this patent
Estimating the term…
Abstract
A valve block assembly for a bottle attachment apparatus for handling liquids has a valve block, an intake valve insert and/or an exhaust valve insert, and a valve receptacle assigned to the respective valve insert. The valve insert is inserted in a replaceable and sealing manner in the valve receptacle. The valve insert has a stop portion, a fastening portion distinct therefrom and a sealing portion distinct from both. The associated valve receptacle has stop, fastening, and sealing portions matching the equivalent portions of the valve insert. When the valve insert is installed correctly both the stop portions and the sealing portions bear on one another in a planar manner.
Claims9
A bottle attachment apparatus for handling liquids, comprising:
- a cylinder-and-piston assembly for suctioning and exhausting liquid,
- a valve block assembly, and
- a fastening assembly for fastening the valve block assembly on a storage bottle,
- wherein the valve block assembly has a valve block, an intake valve insert and an exhaust valve insert,
- wherein the valve block has an intake valve receptacle which is assigned to the intake valve insert,
- wherein the valve block has an exhaust valve receptacle which is assigned to the exhaust valve insert,
- wherein the intake valve insert is inserted in a replaceable and sealing manner in the intake valve receptacle,
- wherein the exhaust valve insert is inserted in a replaceable and sealing manner in the exhaust valve receptacle,
- wherein the valve block has an intake duct which leads to a cylinder of the cylinder-and-piston assembly and connects the cylinder and the intake valve receptacle,
- wherein the valve block has an exhaust duct which leads to the cylinder of the cylinder-and-piston assembly and connects the cylinder and the exhaust valve receptacle,
- wherein the valve block and each valve insert, respectively, are composed of plastic that is able to be used in an autoclave at a temperature of 121° C.,
- wherein each valve insert has a planar stop surface portion at an end face of the insert, a fastening portion which is separated from the stop surface portion by an integral sealing surface portion which is distinct from both the stop portion and the fastening portion, the integral sealing surface portion extending peripherally around the valve insert adjacent to the stop portion at the end face and being planar when viewed in longitudinal cross section,
- wherein each valve receptacle has a planar stop surface portion, a fastening portion, and a sealing surface portion matching the stop surface portion, fastening portion, and sealing surface portion of the respective valve insert,
- wherein the respective duct and the stop surface portion, sealing surface portion, and fastening portion of each valve receptacle are arranged successively in this order, and
- wherein the fastening portions of each valve insert and the respective valve receptacle, in an installed condition of the valve insert, are in force-transmitting mutual engagement with each other in such a manner that both the stop surface portions and the sealing surface portions are forced into direct full face-to-face-abutment on one another over the full surfaces thereof, the abutting surfaces of the stop surface extending in a planar manner perpendicular to the direction of the longitudinal axis and the sealing surface portions extending at an acute angle relative to a longitudinal axis of the insert.
12 more elements
A bottle attachment apparatus for handling liquids, comprising:
- a cylinder-and-piston assembly for suctioning and exhausting liquid,
- a valve block assembly, and
- a fastening assembly for fastening the valve block assembly on a storage bottle,
- wherein the valve block assembly has a valve block, an intake valve insert and an exhaust valve insert,
- wherein the valve block has an intake valve receptacle which is assigned to the intake valve insert,
- wherein the valve block has an exhaust valve receptacle which is assigned to the exhaust valve insert,
- wherein the intake valve insert is inserted in a replaceable and sealing manner in the intake valve receptacle,
- wherein the exhaust valve insert is inserted in a replaceable and sealing manner in the exhaust valve receptacle,
- wherein the valve block has an intake duct which leads to a cylinder of the cylinder-and-piston assembly and connects the cylinder and the intake valve receptacle,
- wherein the valve block and each valve insert, respectively, are composed of plastic that is able to be used in an autoclave at a temperature of 121° C.,
- wherein each valve insert and the respective valve receptacle define a longitudinal axis,
- wherein each valve insert has a fastening portion and an integral sealing surface portion which is distinct from the fastening portion, the integral sealing surface portion extending peripherally around the valve insert adjacent to an end face of the valve insert, the sealing surface portion being planar when viewed in longitudinal cross section and extending away from said end face toward an opposite end of the valve insert at an acute angle in relation to said longitudinal axis,
- wherein each valve receptacle has a fastening portion and an integral sealing surface portion,
- wherein the integral sealing surface portion of each valve receptacle extending peripherally around the valve receptacle adjacent to an end face of the valve receptacle, the sealing surface portion being planar when viewed in longitudinal cross section and extending away from said end face toward an opposite end of the valve receptacle at an acute angle in relation to said longitudinal axis and matching the fastening portion and sealing surface portion of the respective valve insert,
- wherein the fastening portion of each valve insert and the fastening portion of the respective valve receptacle, in an installed condition of the valve insert, are in force-transmitting mutual engagement with each other in such a manner that the sealing surface portion of each valve insert and the sealing surface portion of the respective valve receptacle are forced into direct full face-to-face-abutment on one another over the full surfaces thereof,
- wherein the sealing surface portion of each valve insert and the sealing surface portion of the respective valve receptacle are aligned at said acute angle in relation to the longitudinal axis,
- wherein the mutually interacting sealing surface portions aligned at the acute angle in relation to the longitudinal axis effect delimitation of the movement path of each valve insert into the respective valve receptacle, and
- wherein the sealing surface portion of at least one of the valve receptacles is configured on a free-standing wall extending parallel to the sealing surface portions, the wall being aligned at the acute angle in relation to the longitudinal axis.
15 more elements
Dependencies are inferred from the claim text.