SINGLE USE ENHANCEMENT FOR DISPENSER ASSEMBLY
First Claim
1. A dispenser assembly structured for a single-use application, said dispenser assembly comprising:
- a housing including a dispensing portion disposed and structured to deliver material from said housing,a plunger movably connected to said housing and disposable thereon between an operative position and inoperative position,a locking device disposed within said housing and structured to facilitate passage of said plunger from said operative position into said inoperative position, andsaid locking device including a locking structure disposed and configured for movement restricting engagement with said plunger when said plunger is in said inoperative position.
1 Assignment
0 Petitions
Accused Products
Abstract
A locking device structured to maintain an activating plunger of a dispenser assembly in an inoperative position, subsequent to dispensing, so as to facilitate a single-use operation thereof and thereby preclude the potential confusion between a used and an unused single-use dispensing device. The locking device includes a body disposed in receiving relation to the plunger as it moves from an operative position to an inoperative position. A locking structure connected to the body is disposed to frictionally engage the plunger in movement restricting relation during its passage from the operative position to the inoperative position. Such frictional engagement is sufficient to restrict movement of the plunger back into the operative position once the material has been dispensed.
11 Citations
23 Claims
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1. A dispenser assembly structured for a single-use application, said dispenser assembly comprising:
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a housing including a dispensing portion disposed and structured to deliver material from said housing, a plunger movably connected to said housing and disposable thereon between an operative position and inoperative position, a locking device disposed within said housing and structured to facilitate passage of said plunger from said operative position into said inoperative position, and said locking device including a locking structure disposed and configured for movement restricting engagement with said plunger when said plunger is in said inoperative position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A locking device structured to maintain an activating plunger of a dispenser assembly in an inoperative position, said locking device comprising:
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a body dimensioned and configured to be disposed with an interior of a housing of a dispenser assembly and in accessible relation to the plunger, said body including a locking structure disposed thereon in movement restricting engagement with the plunger when the plunger is in an operative position, said body comprising an open interior disposed in receiving relation to the plunger when disposed from an operative position to an inoperative position, and said locking structure disposed on an exterior of said body in sliding, frictional engagement with the plunger when in the inoperative position. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification