Patents by Inventor Stefan Ritsche
Stefan Ritsche has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6578741Abstract: In a dispenser, particularly an atomizer, which is used for flowable substances, particularly pharmaceuticals, use is made of a pump, which must be actuated one or more times for priming purposes. Its discharge nozzle (14) is covered by a protective cap (38), which is suitable to collect and store the medium, which is discharged during the priming strokes and before the start of the useful strokes. During the priming strokes the protective cap (38) is secured on the dispenser (11). This is brought about in that a locking (40) for the protective cap is only released when the priming strokes have been performed. This can take place by electrical actuation or by material change under the influence of the medium to be discharged. According to a variant the protective cap is not itself locked, but an actuation locking takes place if the protective cap has not been fitted for the priming strokes.Type: GrantFiled: October 11, 2001Date of Patent: June 17, 2003Assignee: Ing. Erich Pfeiffer GmbHInventors: Stefan Ritsche, Juergen Greiner-Perth
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Patent number: 6527144Abstract: The invention relates to a discharge apparatus for media. Corresponding media discharge apparatuses are e.g. generally known in the form of pump atomizers. The problem of the invention is to create a greater freedom of design for the actuation of such discharge apparatuses. This problem is solved in that the actuation direction of the actuating element of the discharge apparatus differs from the stroke direction of the pump element of the discharge apparatus.Type: GrantFiled: July 5, 2001Date of Patent: March 4, 2003Assignee: Ing. Erich Pfeiffer GmbHInventors: Stefan Ritsche, Andreas Graf, Juergen Greiner-Perth
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Publication number: 20030010793Abstract: A child-proof dispending and/or closing device which includes a dosing head that can be operated for a dispending operation, and a carrier unit which is associated with the dosing head and which can be fastened to an outlet area of a storage container for the medium. The dosing head is held in at least one inactive blocking position with the help of at least one manually releasable locking means. According to the invention, two parts of the carrier unit have tooth systems corresponding with one another, which tooth systems are held in disengagement from one another by hold-back means and can be moved temporarily into engagement with one another against the hold-back force of the hold-back means for the purpose of releasing the one part from the storage container.Type: ApplicationFiled: July 10, 2002Publication date: January 16, 2003Inventor: Stefan Ritsche
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Publication number: 20020190083Abstract: A dispenser (1) is provided for unlocking the stroke with two first and second handles (44, 45) configured separate from the actuator handle (5) for actuating the pump stroke. For unlocking, the first handle (44) firstly needs to be actuated in a first release direction (46). Thereafter only an actuation in a second release direction (47) is possible with the second handle (45). It is not until after this second actuation that an unlocked position is attained, which permits implementation of the pump stroke. For the second motion (47) a restrain drag (43) is furthermore provided which can only be defeated by increasing the associated actuating force.Type: ApplicationFiled: February 16, 2001Publication date: December 19, 2002Inventor: Stefan Ritsche
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Patent number: 6484715Abstract: A dispenser (1) has two remote pressure handles (29, 35) and lateral gripping recesses (58) for mutually displacing two units (2, 3) axially and rotationally. A tear-off web (52) prevents the two units (2, 3) from being actuated accidentally. A discharge stud (34) protrudes beyond the handles (29, 35, 58). The dispenser (1) is so small that it may be fully enveloped and covered by one user's hand. Nevertheless reliable actuation for nasal application is assured.Type: GrantFiled: July 12, 1999Date of Patent: November 26, 2002Assignee: Ing. Erich Pfeiffer GmbHInventors: Stefan Ritsche, Stefan Käfer
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Patent number: 6461322Abstract: The nasal dispenser (1) consists of but two integral housing bodies (4, 5) for accommodating a medium blister (6). Bodies (4, 5) are interlocked by withdrawal prevention means against separation and by releasable blocking means (49) against actuation. The medium reservoir (7) is located freely in an innermost housing space (62) of the first housing body (4). Thus the dispenser (1) is highly compact, simple in configuration and permits facilitated handling.Type: GrantFiled: August 30, 2000Date of Patent: October 8, 2002Assignee: Ing. Erich Pfeiffer GmbHInventor: Stefan Ritsche
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Patent number: 6446839Abstract: The invention relates to a dispenser for the discharge and the atomizing of media, in which a liquid medium is discharged in one charge or a small number of partial charges in one operating stroke of an operating presser or trigger. The dispenser is secured against accidental operation and has a minimum packing or storage volume. Prior to each stroke, the operating presser is returned from an operating end portion to the operating starting position to commence the discharge stroke.Type: GrantFiled: August 17, 2000Date of Patent: September 10, 2002Assignee: Ing. Erich Pfeiffer GmbHInventor: Stefan Ritsche
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Patent number: 6427684Abstract: The problem of the invention is to so further develop a discharge apparatus according to the preamble that it is possible during each individual actuating stroke to reliably discharge a predetermined volume of medium. A discharge apparatus for media according to the invention has a casing, on which is located an actuator. During each actuator actuation an actuating stroke takes place and consequently a given volume of the medium stored in the casing is discharged. According to the invention the gravity dependently operating blocking means are constructed in such a way that they can block the performance of an actuating stroke as a function of the spatial position of the discharge apparatus.Type: GrantFiled: February 9, 2001Date of Patent: August 6, 2002Assignee: Ing. Erich Pfeiffer GmbHInventors: Stefan Ritsche, Karl-Heinz Fuchs
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Publication number: 20020066752Abstract: In a dispenser, particularly an atomizer, which is used for flowable substances, particularly pharmaceuticals, use is made of a pump, which must be actuated one or more times for priming purposes. Its discharge nozzle (14) is covered by a protective cap (38), which is suitable to collect and store the medium, which is discharged during the priming strokes and before the start of the useful strokes. During the priming strokes the protective cap (38) is secured on the dispenser (11). This is brought about in that a locking (40) for the protective cap is only released when the priming strokes have been performed. This can take place by electrical actuation or by material change under the influence of the medium to be discharged. According to a variant the protective cap is not itself locked, but an actuation locking takes place if the protective cap has not been fitted for the priming strokes.Type: ApplicationFiled: October 11, 2001Publication date: June 6, 2002Inventors: Stefan Ritsche, Juergen Greiner-Perth
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Patent number: 6364166Abstract: For the discharge, particularly atomization of media, particularly liquid medicaments, a dispenser (11) is provided, which discharges a charge of the medicament in only one or optionally a few strokes. Actuation takes place between three fingers of the user, the thumb pressing an actuating pusher (80) in the actuating and discharge direction. In order to prevent an unintentional actuation and simultaneously protect the discharge opening (44) against dirtying and contamination, a protective cap (90) is provided, which covers the entire discharge section (13) and the holding surfaces (14) for actuation. It also has web-like projections (93) extending up to the actuating pusher (80) and securing the latter, which prevents an actuation when the protective cap is fitted. However, actuation is possible after removing the protective cap, which is secured by a snap connection.Type: GrantFiled: August 10, 2000Date of Patent: April 2, 2002Assignee: Ing. Erich Pfeiffer GmbHInventors: Stefan Ritsche, Gottfried Fuchs, Christa Wohriska
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Publication number: 20020032409Abstract: The invention relates to a dispenser for dischargeable media, preferably containing at least one active pharmaceutical substance and packed in portioned manner in storage chambers of a storage means, as well as a conveying device for the supply of the storage means.Type: ApplicationFiled: May 7, 2001Publication date: March 14, 2002Inventor: Stefan Ritsche
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Publication number: 20020008122Abstract: The invention relates to a discharge apparatus for media. Corresponding media discharge apparatuses are e.g. generally known in the form of pump atomizers.Type: ApplicationFiled: July 5, 2001Publication date: January 24, 2002Inventors: Stefan Ritsche, Andreas Graf, Juergen Greiner-Perth
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Publication number: 20010013525Abstract: The problem of the invention is to so further develop a discharge apparatus according to the preamble that it is possible during each individual actuating stroke to reliably discharge a predetermined volume of medium.Type: ApplicationFiled: February 9, 2001Publication date: August 16, 2001Inventors: Stefan Ritsche, Karl-Heinz Fuchs
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Publication number: 20010007327Abstract: A dispenser (1) comprises a reservoir (7) and a plunger pump (8), the medium inlet (3) of which pierces a closure (45) of the reservoir (7), after which the medium can be discharged metered from the reservoir (7) by repeated strokes with the pump (8). Until used the medium thus remains hermetically sealed.Type: ApplicationFiled: March 12, 2001Publication date: July 12, 2001Inventors: Stefan Ritsche, Juergen Greiner-Perth
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Patent number: 6257454Abstract: The outlet (12) of a dispenser reservoir (8) is sealingly closed by a transverse catch member (21) which also positively prevents the dispenser (1) from being actuated. Pulling out the catch member (21) opens the reservoir (8) and releases the discharge actuator (37). Thus the piston (14) opposing the reservoir outlet (12) can enter. The materials of the reservoir (8) and reservoir seal (30) are paired in glass, tetrafluoroethylene or the like. Thus even sensitive media may be stored in the dispenser (1) over lengthy periods without risking any change in the substances.Type: GrantFiled: April 28, 1999Date of Patent: July 10, 2001Assignee: Ing. Erich Pfeiffer GmbHInventor: Stefan Ritsche
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Patent number: 6227415Abstract: An inlet valve (10) of a dispenser (1) or thrust piston pump, for highly reliable and speedy valve function in all vertical or inclined positions of the dispenser (1) includes, nearer to the pump chamber (20), a valve ball (35) operating in response to pressure and, further away from the pump chamber (20), a valve ball (36) subject to the force of gravity. Ball (36) pushes ball (35) out of its seat (33) in the event that it is firmly seated in the seat (33) due to a vacuum in the reservoir (9) when the dispenser (1) is turned upside down. The seats (33, 34) for the two valve balls (35, 36) are formed by a radially deformable wall (54), which can be tightly and sealingly supported against balls (35, 36).Type: GrantFiled: June 17, 1998Date of Patent: May 8, 2001Assignee: Ing. Erich Pfeiffer GmbHInventors: Stefan Ritsche, Esther Amann
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Patent number: 6109547Abstract: A dispenser head (2) includes a pivotable discharge stud (17). The outlet duct (15) thereof is bounded by an inner body (22) and is located laterally adjacent to the stud axis (11). Thereby the medium may be discharged in atomized form while being multiply deflected.Type: GrantFiled: December 16, 1998Date of Patent: August 29, 2000Assignee: Ing. Erich Pfeiffer GmbHInventor: Stefan Ritsche
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Patent number: 5950879Abstract: A dispenser for discharging media, comprising: a dispenser base; a discharge deliverer for forcing the media out of the dispenser; an actuator including a discharge actuator for activating the discharge deliverer between a rest position and an actuated end position remote from the rest position; an outlet duct for the medium; a medium outlet connected to the outlet duct for discharging the media out of the dispenser; a media reservoir bounding a reservoir space and including a reservoir closure for closing the reservoir space; each of the dispenser base, discharge deliverer, actuator, outlet duct, medium outlet and media reservoir forming constituent elements of a preassembled assembly; the assembly having a filling duct for filling a filling medium from outside the dispenser into the reservoir space, the filling duct communicating with the reservoir space as the media reservoir is preassembled with the discharge deliverer; and, a bounding wall projecting toward the reservoir space close to the media reservoiType: GrantFiled: October 24, 1995Date of Patent: September 14, 1999Assignee: Ing. Erich Pfeiffer GmbHInventor: Stefan Ritsche
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Patent number: D414261Type: GrantFiled: October 29, 1998Date of Patent: September 21, 1999Assignee: Ing. Erich Pfeiffer GmbHInventor: Stefan Ritsche
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Patent number: D414555Type: GrantFiled: April 18, 1997Date of Patent: September 28, 1999Assignee: Ing. Erich Pfeiffer GmbHInventor: Stefan Ritsche