DEVICE FOR THE DOSED ADMINISTRATION OF A FLUID PRODUCT COMPRISING A TORSION SPRING DRIVE
First Claim
1. A device for administering a fluid product comprising a housing, a conveying device for the product, a coupling element provided for the drive of the conveying device and which can be rotated about a rotational axis, a first blocking element connected in a rotationally secure manner to the coupling element, a second blocking element detachably engageable with the first blocking element thereby preventing a rotational movement thereof in the drive direction and enabling said rotational movement to take place in the counter dosing direction, a torsion spring connected to the coupling element such that it is stressed by the rotational movement when the blocking elements are engaged in a blocked position and drives the coupling element in a rotary manner after the blocking position is released, and a release element coupled to at least one of the blocking elements such that a release movement of the release element displaces at least one of the blocking elements from the blocked position, the release element also forming a dosing element used to control a product dose.
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Accused Products
Abstract
A device for administering a fluid product including a housing, a conveying device for the product, a coupling element provided for the drive of the conveying device and which can be rotated about a rotational axis, a first blocking element connected in a rotationally secure manner to the coupling element, a second blocking element detachably engageable with the first blocking element thereby preventing a rotational movement thereof in the drive direction and enabling said rotational movement to take place in the counter dosing direction, a torsion spring connected to the coupling element such that it is stressed by the rotational movement when the blocking elements are engaged in a blocked position and drives the coupling element in a rotary manner after the blocking position is released, and a release element coupled to at least one of the blocking elements such that a release movement of the release element displaces at least one of the blocking elements from the blocked position, the release element also forming a dosing element used to control a product dose.
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Citations
36 Claims
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1. A device for administering a fluid product comprising a housing, a conveying device for the product, a coupling element provided for the drive of the conveying device and which can be rotated about a rotational axis, a first blocking element connected in a rotationally secure manner to the coupling element, a second blocking element detachably engageable with the first blocking element thereby preventing a rotational movement thereof in the drive direction and enabling said rotational movement to take place in the counter dosing direction, a torsion spring connected to the coupling element such that it is stressed by the rotational movement when the blocking elements are engaged in a blocked position and drives the coupling element in a rotary manner after the blocking position is released, and a release element coupled to at least one of the blocking elements such that a release movement of the release element displaces at least one of the blocking elements from the blocked position, the release element also forming a dosing element used to control a product dose.
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2. A device for administering a fluid product, said device including:
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a) a casing comprising a reservoir for the product;
b) a conveying means for the product;
c) a coupler member rotationally moveable about a rotational axis for driving the conveying means;
d) a first blocking member connected, secure against rotating, to the coupler member;
e) a second blocking member which, in a releasable blocking engagement with the first blocking member, prevents a rotational movement of the first blocking member in a drive direction and allows a rotational movement of the first blocking member in an opposite dosing direction;
f) a torsion spring which is connected to the coupler member such that it is tensed by the rotational movement when the blocking members are in blocking engagement, and rotationally drives the coupler member after the blocking engagement is released; and
g) a triggering element coupled to at least one of the blocking members such that a triggering movement of the triggering element moves said at least one of the blocking members out of the blocking engagement;
h) wherein the triggering element also comprises a dosing member for setting a product dosage. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification