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US 5,115,980 AGranted
Manually operated dual invertible pump
AssigneeIng. Erich Pfeiffer GmbH
InventorThomas Skorka
Life of this patent
Estimating the term…
Abstract
A manually operable discharge pump for media is operable in a normal position and in an inverted position. A duct means 57b carries the medium. At least one valve 12b substantially closes and opens at least one duct 57b, and the valve 12b has a deformable valve body 44b cooperating with a valve seat 45b, the valve body being arranged between the valve seat and an opposite facing support face 56. The valve body 45b opens by a deformation motion providing an opening position and a closing position of the valve 12b. The valve body 54b is provided by a disk-like spring washer inserted between the valve seat 45b and the facing support face 56.
Claims25
A manually operated dispenser for dispensing media from a media supply means, said dispenser comprising:
- at least one duct means for a medium;
- at least one valve for substantially closing and opening at least one said at least one duct means, said at least one valve having a valve body cooperating with a valve seat, said valve body being a resiliently deformable disk body inserted between said valve seat and an opposite facing support face, said disk body having a self-resiliency in the manner of a disk spring to be operationally resilient for performing a deformation motion providing a resting position and a second position,
- said disk body being substantially planar in one of the resting position and the second position, wherein said disk body is braced between said valve seat and said support face by said self-resiliency, said disk body being substantially spherical in the other of said resting position and said second position, for moving onto and off of the valve seat.
A manually operated dispenser for dispensing media from a media supply means, said dispenser comprising:
- at least one duct means for a medium;
- at least one valve for substantially closing and opening at least one said at least one duct means, said at least one valve having a deformable valve body cooperating with a valve seat, said valve body being arranged between said valve seat and an opposite facing support face, means being provided for transferring said valve body between an opening position and a closing position by deformation of said valve body and, for forcing said valve body towards said closing position by pressure of a medium, wherein said valve body is supportedly and annularly engaging said support face in a vicinity of an outer circumference.
A manually operated dispenser for dispensing media from a media supply means, said dispenser comprising:
- at least one duct means for a medium;
- at least one valve for substantially closing and opening at least one said at least one duct means, said at least one valve having a deformable valve body cooperating with a valve seat, said valve body being arranged between said valve seat and an opposite facing support face, said valve body opening by a deformation motion providing an opening position and a closing position, said valve body being arranged at the end of a rod providing said facing support face and wherein said rod is positionally fixedly inserted in a socket surrounding said valve body.
A manually operated dispenser for dispensing media from a media supply means, said dispenser comprising:
- at least one duct means for a medium;
- at least one valve for substantially closing and opening at least one said at least one duct means, said at least one valve having a deformable valve body cooperating with a valve seat, said valve body being arranged between said valve seat and an opposite facing support face, said valve body opening by a deformation motion providing an opening position and a closing position, and wherein a socket receiving said valve body is an end socket passing into said duct means in the vicinity of said valve seat.
A manually operated dispenser for dispensing media from a media supply means, said dispenser comprising:
- at least one duct means for a medium;
- at least one valve for substantially closing and opening at least one said at least one duct means, said at least one valve having a deformable valve body cooperation with a valve seat, said valve body being arranged between said valve seat and an opposite facing support face, said valve body opening by a deformation motion providing an opening position and a closing position, and wherein said valve body is arranged between two longitudinally chaining rod members fixedly interconnected and providing a rod element of a piston rod.
A manually operated dispenser for dispensing media from a media supply means, said dispenser comprising:
- at least one duct means for a medium;
- at least one valve for substantially closing and opening at least one said at least one duct means, said at least one valve having a deformable valve body cooperating with a valve seat, said valve body being arranged between said valve seat and an opposite facing support face, said valve body opening by a deformation motion providing an opening position and a closing position, and wherein said valve is arranged in duct means of two simultaneously operating pumps, said duct means of both of said pumps traversing said valve body.
A manually operated dispenser for dispensing media from a media supply means, said dispenser comprising:
- at least one duct means for a medium;
- at least one valve for substantially closing and opening at least one said at least one duct means, said at least one valve having a deformable valve body cooperating with a valve seat, said valve body being arranged between said valve seat and an opposite facing support face, said valve body opening by a deformation motion providing resting position and a second position, wherein said valve body is provided by a disk body inserted between said valve seat and said facing support face, said valve body being operationally resilient, and substantially planar in one of the resting position and the second position, and substantially spherically concave in the other of said resting position and said second position, for moving onto and off of the valve seat, two pumps having pump chambers being provided, a first one of said two pumps being provided for operation in an upright position of the dispenser, a second one of said two pumps being provided for operation in an inverted position of said dispenser, suction ports being provided for connecting said pumps to said media supply means, outlet duct means being provided for discharging the media from said pump chambers, said outlet duct means being connected to said pump chambers, said outlet duct means having a common outlet duct for said two pumps, said at least one valve providing an outlet valve of said outlet duct means, said valve body opening said outlet valve to an area surrounding said valve seat.
A manually operated dispenser for dispensing media from a media supply means, said dispenser comprising:
- at least one duct means for a medium;
- at least one valve for substantially closing and opening at least one said at least one duct means, said at least one valve having a deformable valve body cooperating with a valve seat, said valve body being arranged between said valve seat and an opposite facing support face, said valve body opening by a deformation motion providing a resting position and a second position, wherein said valve body is provided by a disk body inserted between said valve seat and said facing support face, said valve body being operationally resilient, and substantially planar in one of the resting position and the second position, and substantially spherically concave in the other of said resting position and said second position, for moving onto and off of the valve seat, said valve being arranged between two first and second duct means provided for separate supply with media said second means being arranged in a manner surrounding said first duct means.
Dependencies are inferred from the claim text.