Patent ID: 8459505

Claim:
A fluid dispensing device having an internal valve spring, the fluid dispensing device comprising: a housing member; a valve assembly comprising a valve spring and a valve spring retainer, the valve spring disposed within a receptacle of the housing member and biasing the valve assembly closed, the valve spring retainer comprising a first portion shaped to be received in a receptacle of the housing member, the first portion comprising a spring receptacle shaped to receive and support an end of the valve spring, and a second portion attached to the first portion, the second portion shaped to engage a complementary-shaped portion of the housing member to retain the first portion within the receptacle of the housing member wherein the valve spring retainer is moveable between a non-engaged orientation where the second portion does not engage the complementary-shaped portion of the housing member and an engaged orientation where the second portion does engage the complementary-shaped portion of the housing member by rotation of the valve spring retainer in both a clockwise and counter-clockwise direction and wherein the second part of each valve spring member is externally accessible when engaged within the receptacle of the housing member such that the valve assembly is directly removable from the housing member.