31
Lothar Graf, Karl Heinz Fuchs: Dispenser for positively discharging a medium through a plurality of motions. Ing Erich Pfeiffer & Co KG, Quarles & Brady, November 28, 1995: US05469989 (16 worldwide citation)

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 ...


32
Karl Heinz Fuchs: Dispenser for media. Ing Erich Pfeiffer & Co KG, Quarles & Brady, March 7, 1995: US05395032 (16 worldwide citation)

A dispenser for dispensing a single dose of a powder medium is incorporated in an essentially hermetically sealed medium chamber with an essentially hermetically sealed compressed air pump. The pump chamber can be opened to the medium chamber through an inlet valve only after a first partial section ...


33
Lothar Graf: Metering pump, as well as process and apparatus for filling a container equipped with a metering pump. Firma Ing Erich Pfeiffer & Co KG, Steele Gould & Fried, August 6, 1985: US04532967 (14 worldwide citation)

A method and apparatus for pre-charging the pump chamber of a discharge pump on a container such as a fluid atomizer primes the pump for dependable operation thereafter. The method includes opening the outlet valve of the discharge pump by operating the pump to its full displacement, and applying a ...


34
Karl Heinz Fuchs, Stefan Ritsche: Media dispenser having a variable constriction outlet. Ing Erich Pfeiffer & Co KG, Quarles & Brady, August 12, 1997: US05655689 (12 worldwide citation)

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 pa ...


35
Thomas Skorka: Thrust piston pump for active substance dispenser. Ing Erich Pfeiffer & Co KG, February 23, 1988: US04726747 (12 worldwide citation)

A thrust piston pump for an active substance dispenser has two equiaxial, position-rigid, interconnected pistons running in the same direction, namely a pump piston passing in and out of an otherwise closed pump chamber and a larger presuction pistion located downstream thereof, in whose associated ...


36
Lothar Graf, Karl Heinz Fuchs: Dispenser for flowable media. Ing Erich Pfeiffer & Co KG, Steele Gould & Fried, March 1, 1988: US04728008 (11 worldwide citation)

A dispenser or delivery apparatus for flowable media, particularly very viscous or gel-like media, has a dosing chamber body (38) located within the stored medium and the body (38) moves backwards and forwards over part of the pump stroke of the pump piston (10) of a thrust piston pump (8). Body (38 ...


37
Guiseppe Malinconico: Media dispenser with actuation register. Ing Erich Pfeiffer & Co KG, Quarles & Brady, January 11, 1994: US05277334 (11 worldwide citation)

The acquisition device of a discharge apparatus is operated by a servodrive, which has at least one control cam constantly engaging in a cam path. The control cam is directly provided on the actuating cap for the discharge actuator, while the cam path is located on the circumference of a fastening c ...


38
Michael Wolter, Friedrich Zuckschwerdt: Media dispenser for dispensing a dosed medium in a gas flow. Ing Erich Pfeiffer & Co KG, Quarles & Brady, June 28, 1994: US05323936 (9 worldwide citation)

For the manual discharge of a pulverulent medium a discharge apparatus (1) has an air pump (9), whose compressed air flow receives the powder medium via an injector (37) and a turbulence chamber (38) from a dosing mechanism (25) automatically refillable from a medium reservoir (4) and is discharged ...


39
Thomas Skorka: Manually operated dual invertible pump. Ing Erich Pfeiffer & Co KG, Steele Gould & Fried, April 25, 1989: US04823991 (9 worldwide citation)

A manually operated dispensing pump has dual pump mechanisms, one pump being operable in a normal upright position and the other pump being operable when the apparatus is inverted. The dual pumps are fed from the same storage vessel for the media to be pumped. A preferred embodiment arranges the dua ...


40
Karl Heinz Fuchs: Pressure-operable locking valve for media dispenser. Ing Erich Pfeiffer & Co KG, Quarles & Brady, November 29, 1994: US05368201 (8 worldwide citation)

A valve for a dispenser has a spherical valve body which is fixed in the closed position by a catch mechanism. When a predetermined dispensing pressure is applied, the valve body is moved out of the locked position and displaced, like a piston, into a sealed receiving chamber, in which it is fixed. ...