Patents Assigned to Ing. Erich Pfeiffer Gmbh
  • Patent number: 5938125
    Abstract: A throat beak head (1) comprises an actuating press grip (8) having an integral beak (9) and located therein a filler (23) arranged in a mount (24) diametrally passing through the full length of said press grip (8) and fitted in the emerging direction (36) of the medium from the nozzle (10), as a result of which the risk of parts of the beak (9) being expelled due to the delivery pressure and gaining access to the windpipe when using the head (1) is substantially reduced.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: August 17, 1999
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventors: Stefan Ritsche, Esther Amann
  • Patent number: 5927559
    Abstract: A pump (2) is secured to a reservoir vessel (3) with a seal interposed. The seal contains a filter unit (20) to enable filtered outside air to be replenished in the reservoir chamber (35) in the course of it being emptied. As a result of this the air does not need to flow through the interior of the pump (2). In addition, the filter (21) does not need to be selected according to requirements until pump and reservoir are assembled. Furthermore, assembly is simplified and no separate mount for the filter (21) is needed.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: July 27, 1999
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventors: Rene Bommer, Michael Stifel
  • Patent number: 5921444
    Abstract: A discharge apparatus, or medium dispenser, has an annular contact surface, face or edge for contacting a surface or object to be sprayed by a medium dispensed from a discharge nozzle spaced therefrom. The contact surface, face or edge can, for example, engage the eye socket around the eye of a patient, the eyelids being eccentrically widened by pressure loading. The contact surface, face or edge is located at the end of the jacket of a cap body into which the medium is discharged by the nozzle. The jacket elastically gives way over part of its length by reason of transverse openings on its circumference and/or bottom. The openings permit a locally, precisely defined incidence of light on the area to be sprayed, and provide non-uniform stiffness.
    Type: Grant
    Filed: July 31, 1995
    Date of Patent: July 13, 1999
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventor: Karl-Heinz Fuchs
  • Patent number: 5901883
    Abstract: A discharge unit (1) contains two separate delivery units (15) to be actuated in common through which the medium flows along a module (35) separate from two base bodies (4,5) to two atomizer nozzles (48) so that due to their spray cones overlapping each other the two separately emerging media are intermingled in utmost fine dispersion and, e.g. with the formation of a gelling blended medium, react with each other. As a result of this two media reacting with each other chemically or physically can be intermingled not before being outside of the discharge nozzles (48) and thereby simultaneously applied to the region of application, e.g. a mucuous membrane.
    Type: Grant
    Filed: October 30, 1996
    Date of Patent: May 11, 1999
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventor: Stefan Ritsche
  • Patent number: 5893484
    Abstract: A disposable atomizer contains a cylindrical container for a medium to be atomized, particularly a pharmaceutical medium. The container is closed by a rubber plunger plug which has a central opening into which a closure ball is pressed. For discharging the medium, the container is pressed against an actuator which pushes the ball from the opening and thereby opens the container while, at the same time, the actuator forced down from a shoulder forms the plunger of a plunger pump formed thereby.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: April 13, 1999
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventors: Karl-Heinz Fuchs, Hans Merk
  • Patent number: 5875938
    Abstract: In a discharge device including two mutually shiftable units (2, 3) permanent magnets (14, 24, 33, 34) are provided for controlling a piston unit (20) and valves (13, 23, 45), the magnetic force of these magnets being provided more particularly to cause a reset movement into the starting position. These magnets may be immersed in the medium or surrounded on all sides by the medium flow, thus enabling mechanical springs to be eliminated and assuring highly reliable functioning.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: March 2, 1999
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventors: Lothar Graf, Stefan Ritsche
  • Patent number: 5862962
    Abstract: A fluid media dispenser is disclosed having an uptake tube or wall body configured with differing wall thicknesses so that, due to material shrinkage, a lateral curve is formed in the uptake tube or wall body which facilitates removal of the formed dispenser from a mold. A simplified injection mold/extrusion nozzle method for producing this dispenser is also disclosed.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: January 26, 1999
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventors: Karl-Heinz Fuchs, Stefan Ritsche
  • Patent number: 5860567
    Abstract: A dispenser (1) includes in a casing (2) with a volume-variable storage chamber (11) for the medium, a discharge closure (10), whose closure member (50) is located directly adjacent to the discharge nozzle (8) and whose pressure dependently operating control device (18) is arranged completely within the casing (2). The control device (18) is located on a support unit (5) separate from the casing (2) and defining ducts (28, 29, 38, 47) for two separate media. Thus, while achieving simple construction and assembly, a contamination of the stored medium can be prevented.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: January 19, 1999
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventors: Karl Heinz Fuchs, Esther Amann
  • Patent number: 5816504
    Abstract: A discharge apparatus (1 or 41) for media to be atomized in ultrafine form has a discharge nozzle (3) with a sponge-like medium receiver (10), into which issue on the one hand a functionally closed source unit (50) for the medium and on the other a conveying or delivery device (11) for compressed air, so that by a control mechanism (40) initially a drop of medium spreads out in capillary manner in the receiver (10), after which by random actuation an air pressure surge flows through the receiver (10) towards the medium outlet (4). The medium is discharged from the medium receiver (10) in an already finely divided state, whirled up and once again is finely atomized in the vicinity of an impact atomizer (30) until it passes into the open with a minimum droplet size of max. 2 .mu.m.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: October 6, 1998
    Assignee: Ing. Erich Pfeiffer Gmbh
    Inventors: Friedrich Wilhem Zuckschwerdt, Reinhold Jager-Waldau
  • Patent number: 5813570
    Abstract: A discharge apparatus for flowable media, comprising: a basic body, at least partly receiving a pump unit; the pump unit having a pump chamber connectable to a discharge opening via a discharge channel; a pump cylinder and a pump piston bounding the pump chamber; the pump cylinder forming a medium reservoir; the pump piston being displaceably guided in the pump cylinder for discharging all the medium contained in the medium reservoir by a single pump stroke in a pump stroke direction; and, at least one breakable material bridge between the pump unit and the basic body which can be destroyed by an actuating force exerted in the pump stroke direction, whereby the medium is discharged from the apparatus with a predetermined discharging pressure by a predetermined actuating force level and the apparatus is provided with a destroyable tamper-evident closure.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: September 29, 1998
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventors: Karl-Heinz Fuchs, Stefan Ritsche
  • Patent number: 5803311
    Abstract: A dispenser for discharging media to be used in conjunction with a pressure chamber comprises: a medium outlet; an outlet channel leading into the medium outlet, the outlet channel defining a medium flow in operation, the outlet channel, at a distance from the medium outlet, having a channel portion provided to connect to the pressure chamber and operable for producing a delivery pressure in a range of increasing medium pressures, from a relatively lower medium pressure to a relatively higher medium pressure, the outlet channel having adjustable passage cross-sections; and, a controller for increasing the passage cross-sections to a relatively larger cross-section at relatively lower medium pressure and to constrict the passage cross-sections smaller than the relatively larger cross-section at the relatively higher medium pressure.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: September 8, 1998
    Assignee: Ing. Erich Pfeiffer GmbH & Co KG
    Inventor: Karl-Heinz Fuchs
  • Patent number: 5692650
    Abstract: A discharging apparatus (1) is arranged in substantially completely inserted or plunged manner in a storage vessel (2) with a locking flange (30), which forms an opening (40) for the at least partial reception of the operating head (20) and engages round the vessel neck (7) in the manner of a hang-in profile. The locking flange (30) carries a securing body (50) for the snap retaining of closure cap lid. Thus, there is a very compact arrangement of the discharging apparatus (1) in such a way that the latter only insignificantly increases the total length of the storage vessel (2).
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: December 2, 1997
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventors: Michael Wolter, Lothar Graf, Gottfried Fuchs
  • Patent number: 5655689
    Abstract: A discharge apparatus provided as a single spray has in the interior of the discharge connection as an evaporation barrier for the medium a rotary closure, which can be opened and closed by a mutual rotation of the casing and the head or the body and the medium reservoir. For this purpose a shaft part in the form of a filler is formed from two longitudinally, interconnected bar parts, which rotatably engage in one another and form closure parts of the closure located within a cover sleeve. This allows very long storage times of the filled discharge apparatus.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: August 12, 1997
    Assignee: Ing. Erich Pfeiffer GmbH & Co. KG
    Inventors: Karl-Heinz Fuchs, Stefan Ritsche
  • Patent number: 5584417
    Abstract: A dispenser is disclosed which is made up of two telescoping sections. One section holds at least one volume of a substance to be discharged. Telescoping motion of the sections compresses the substance to be discharged to force it through a passage in the section not holding the substance volume to be discharged therefrom. Motion between the section is limited to ensure precise metering of a charge to be dispersed.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: December 17, 1996
    Assignee: Ing. Erich Pfeiffer GmbH & Co. KG
    Inventors: Lothar Graf, Karl-Heinz Fuchs
  • Patent number: 5519980
    Abstract: A magazine body (2) with a plurality of radial magazine chambers (3) by insertion in an axial fastening device (20) with chamber inlets (4) is made to coincide with a medium passage opening (30) and with outlets (5) is made to coincide with a connecting opening (33) of a suction head (17), so that the medium occurs in uninterrupted manner at the inlets (4). The suction head (17) evacuates all the magazine chambers (3) and then filled via the passage (30) from a medium supply (12) and against a medium retaining device (36). With the ejection of the filled magazine chambers (33) the inlets and outlets (4, 5) are closed in medium-tight manner by stripping from closure parts (8, 9).
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: May 28, 1996
    Assignee: Ing. Erich Pfeiffer GmbH & Co KG
    Inventors: Bernhard Guentert, Reinhold Jaeger Waldau, James D. Wiggins
  • Patent number: 5520337
    Abstract: A discharge head is connected to a double pump for air and liquid. The air and liquid are separately passed by pump actuation through a flow calming member and then into a combining member in a way such that the air enters in the form of numerous individual jets and under a low pressure and at a low flow rate into a liquid-wetted screen unit provided in a widened chamber. In the vicinity of the screen unit which are supplied with liquid from a chamber, the liquid can be foamed in a stepwise manner with the aid of air until the foam is discharged ready for use through an end channel.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: May 28, 1996
    Assignee: Ing. Erich Pfeiffer GmbH & Co. KG
    Inventor: Karl-Heinz Fuchs
  • Patent number: 5482193
    Abstract: A media dispenser (2) has a discharge head (3), a medium chamber (30) holding a volume of medium filled under pressure, and a hand-operable propellant pump (5). By manual compression of the balloon-like pressure chamber (6) comprising film portions (13, 14), propellant is conveyed into the medium chamber (30), with pressure sufficient to cause the opening of a valve (26), and delivery of a mixture of medium and propellant through an atomizing nozzle (21). The nozzle (21) is tightly closed by a closure (39) connected to a common carrier (40) for a plurality of the dispensers (2). The carrier (40) has interruptible connections to the head (3) which can be interrupted to remove closure 39 and open atomizing nozzle 21.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: January 9, 1996
    Assignee: Ing. Erich Pfeiffer GmbH & Co. KG
    Inventor: Karl-Heinz Fuchs
  • Patent number: 5469989
    Abstract: A dispenser is disclosed which is made up of two telescoping sections. One section holds at least one volume of a substance to be discharged. Telescoping motion of the sections compresses the substance to be discharged to force it through a passage in the section not holding the substance volume to be discharged therefrom. Motion between the section is limited to ensure precise metering of a charge to be dispersed.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: November 28, 1995
    Assignee: Ing. Erich Pfeiffer GmbH & Co. KG
    Inventors: Lothar Graf, Karl-Heinz Fuchs
  • Patent number: 5443185
    Abstract: A discharge apparatus for media has a medium pump and a compressed air pump, as well as control means through which, in stroke-dependent manner, precompression only takes place in the air pump during a first partial stroke and then during a further partial stroke delivery takes place from both pumps following a pressure-dependent opening of the delivery valve and finally during a further partial stroke delivery only takes place from the air pump. In order that the medium pump does not deliver to the outlet channel over intermediate and final partial strokes, delivery takes place back into the reservoir via the inlet channel.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: August 22, 1995
    Assignee: Ing. Erich Pfeiffer GmbH & Co. K.G.
    Inventor: Karl H. Fuchs
  • Patent number: D401323
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: November 17, 1998
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventor: Stefan Ritsche