Patent ID: 8978934
Filing Date: 2015-03-17
Classification: A45D,B65D

Abstract:
1. A dispenser for dispensing a viscous fluid stored directly within a body of the dispenser or within a cartridge inserted within the dispenser, the dispenser comprising: an upper outer portion including a dispensing aperture in which the viscous fluid is forced through the dispensing aperture by advancing a piston member towards the upper outer portion and where the piston is advanced by turning a first thread member that is located in a female thread of a main body member and where upon completion of such turning resilient means are provided to slightly increase the distance between the outer portion and the piston member, in order to prevent unwanted dispensing of fluid; wherein the resilient means comprises a spring or other resilient member that is either stretched or compressed during turning of the first thread member and which upon completion of such turning by a user returns to its normal length and thereby exerts a force that provides said slight increase in the distance between the outer portion and the piston member; and wherein the resilient means further comprises a second thread member with a male thread that is also located in the female thread of the main body member and wherein the spring or other resilient member provides bias between the first thread member and the second thread member.