Abstract:
A dispensing device for dispensing metered dosages of a medicament from a container includes a dispenser housing having a support block defining a longitudinal axis and an indicator housing disposed at least partially around the support block. An actuator includes a central, cylindrical hub portion adapted to be engaged by the container and centered about the longitudinal axis. The actuator is moveable along the longitudinal axis relative to the indicator housing and includes a resilient arm. A drive gear is rotatably disposed in the indicator housing and is rotatable in response to successive engagements by the resilient arm. An indicator is rotatably disposed in the indicator housing and is rotatable in response to the rotation of the drive gear. The indicator includes dosage indicia. A dispensing system and indicating device are also disclosed.
Abstract:
A dispensing device for dispensing metered dosages of a medicament from a container includes a dispenser housing having a support block defining a longitudinal axis and an indicator housing disposed at least partially around the support block. An actuator includes a central, cylindrical hub portion adapted to be engaged by the container and centered about the longitudinal axis. The actuator is moveable along the longitudinal axis relative to the indicator housing and includes a resilient arm. A drive gear is rotatably disposed in the indicator housing and is rotatable in response to successive engagements by the resilient arm. An indicator is rotatably disposed in the indicator housing and is rotatable in response to the rotation of the drive gear. The indicator includes dosage indicia. A dispensing system and indicating device are also disclosed.
Abstract:
An indicating device suitable for indicating the number of metered dosages that have been dispensed from or remain in a container includes a base member adapted to be mounted to the container and a cap member moveably connected to the base member. The cap member is moveable relative to the base member along an axial path. A shaft is non-rotatably mounted to one of the cap member and the base member and defines an axis. An indicator member is rotatably mounted on the shaft and is rotatable in at least a first direction. One of the shaft and the indicator member has a helical groove while the other of the shaft and the indicator member has a follower disposed in the groove. The indicator member is moveable relative to the shaft along the axis as the indicator member is rotated in the first direction. In another embodiment, the indicating device includes first, second and third indicator members. In yet another embodiment, the indicating device includes a housing having a longitudinally extending cavity shaped to receive the container and an indicator member disposed in the cavity and having a longitudinally extending wall shaped to surround at least a portion of the container. The indicator member is rotatably mounted within the housing and is rotatable relative thereto about a longitudinal axis. The indicator member includes a driven gear. A drive gear is disposed in the housing and includes a drive portion selectively engaged with the driven gear. An actuator is adapted to move with the container and is selectively engaged with the drive gear.
Abstract:
An apparatus for measuring a fluid level includes a housing with a level indicator adapted to display a measured fluid level. A float is associated with the level indicator and an elongated flexible member is provided with a first end and a second end, wherein the first end is attached to the float. The apparatus further includes a spool adapted to store at least a portion of the elongated flexible member, wherein the second end of the elongated flexible member is attached to the spool. A biasing member is adapted to urge the spool to automatically uptake portions of the elongated flexible member as the float travels towards the housing and adapted to allow the elongated flexible member to unwind from the spool as the float travels away from the housing. Additional apparatus include a housing with a level indicator having first and second level indicating gears and a first indexing device adapted to prevent its movement away from one of the indexing gears. The apparatus and a float guide member may be installed on a tank.
Abstract:
An indicating device suitable for indicating the number of metered dosages that have been dispensed from or remain in a container includes a base member adapted to be mounted to the container and a cap member moveably connected to the base member. The cap member is moveable relative to the base member along an axial path. A shaft is non-rotatably mounted to one of the cap member and the base member and defines an axis. An indicator member is rotatably mounted on the shaft and is rotatable in at least a first direction. One of the shaft and the indicator member has a helical groove while the other of the shaft and the indicator member has a follower disposed in the groove. The indicator member is moveable relative to the shaft along the axis as the indicator member is rotated in the first direction. In another embodiment, the indicating device includes first, second and third indicator members. In yet another embodiment, the indicating device includes a housing having a longitudinally extending cavity shaped to receive the container and an indicator member disposed in the cavity and having a longitudinally extending wall shaped to surround at least a portion of the container. The indicator member is rotatably mounted within the housing and is rotatable relative thereto about a longitudinal axis. The indicator member includes a driven gear. A drive gear is disposed in the housing and includes a drive portion selectively engaged with the driven gear. An actuator is adapted to move with the container and is selectively engaged with the drive gear.
Abstract:
Provided herein are dry powder inhalers for the delivery of metered doses of medicament, counters associated with the inhalers for counting and displaying the number of doses administered or remaining within the inhaler, and methods of use thereof.
Abstract:
A powder dispenser includes a reservoir body including a supply of powder and an inhalation conduit; a driving body for rotating the reservoir body and including upper recesses and two spring fingers in lower driving recesses thereof; a rotatable metering plate for carrying a metered amount of powder from the supply to the inhalation conduit, and having an underside with ribs; a gas permeable retainer welded to the ribs; a spring biasing the metering plate toward the reservoir body; a nozzle having spiked ribs welded in the upper recesses of the driving body and including a chimney with vertical flutes; an adapter non-rotatably mounted with respect to the metering plate and including two locking recesses for receiving the spring fingers for locking engagement and two helical cam tracks with a square cross-section; a closure cap covering the driving body and including priming ribs biasing the spring fingers out of the locking recesses and engaging with the locking recesses to rotate the driving body, and two cams riding within the cam tracks; a base non-rotatably connected with the metering plate; and a counter rotatably mounted on the base and including rotatable counter rings providing a visual count of the number of doses of powder to be dispensed, and a pawl assembly engaging with gear teeth of the counter rings for rotating the same, the pawl assembly including an outer wall, a pawl and a pawl spring integrally molded as a single piece.
Abstract:
An inhaler for multiple dosed administration of a pharmacological dry powder consists externally of a housing (100,150) and of a protective cap (950) which can be removed from a special mouthpiece (900) fitted on the housing. Arranged on the inside there are a slide rail (200), a dosing slide (300), a shutter (400), a carriage (500), a funnel arrangement (600), a counter device (700), a valve shield (800) and a valve guide (850). Removal of the protective cap (950) initiates the dosing, with a dose received in the dosing cavity (302) being transported to the mouth-piece (900) by means of the dosing slide (300). Only upon application of a defined minimum intensity of inhalation is the shutter (400) moved by the suctioned valve shield (800), as a result of which the dose is released for inhalation. Completed with an electronic module and a controllable nozzle, all inhalation-relevant data can be recorded and the flow conditions regulated.
Abstract:
An odometer apparatus having an error elimination mechanism for eliminating an error in an indication figure. The odometer apparatus includes a set of gears rotatably supported on a first shaft for indicating each digit of a set of digits in the indication figure, a set of pinions coupled with the gears and rotatably supported on a second shaft for transmitting a rotation force to the gears, a set of bosses each arranged between two adjacent pinions and formed integrally with the pinions, each of the bosses having a substantially square section taken in a plane perpendicular to the second shaft, and a pressure member for eliminating an error in the indication figure due to a backlash between the gears and the pinions. The pressure member is engaged in a unique manner with a side surface of one of the bosses such that the side surface of the boss is pressed by the pressure member at a predetermined angle to the side surface so as to apply appropriate pressure to the boss on the second shaft to eliminate an indication figure error. Also, the odometer has a reverse rotation prevention mechanism which is formed with a spring member for preventing the gears from being rotated reversely around the first shaft.
Abstract:
A position encoder has a plurality of measured value embodying carriers mechanically coupled so that those of lower position value drive those of higher position value. The carriers contain encoding step markings (n,m) in which n is the number of encoding step markings per position and m is a whole, even number. For a decade encoder, n equals 10 and m equals 2.