Self-cleaning, reusable dispensing system for viscous fluids

Abstract

A two piece dispensing system for viscous fluids includes a valve body and a valve cap. The valve body threadingly engages the factory nozzle of the viscous fluid tube/cartridge. The hollow valve body and valve cap are slidably engaged via rotational engagement to allow the discharge of fluid or to seal the container. The valve body has two groves with a circumferential scraping edge to collect the fluid, prevent unwanted ejection of the fluid from the tube, and help seal the tube's contents from the atmosphere. The dispensing system is matingly conformed so as to utilize a triple atmospheric seal when closed.

1 . A self-cleaning, reusable dispensing system for viscous fluids comprising:
 a hollow valve body with a set of engageable grooves formed about an exterior surface thereof; and   a hollow generally cylindrical valve cap with a set of protuberances matingly conformed to said grooves and formed on an interior surface thereof;   wherein said valve cap is rotatably engaged about the exterior surface of said valve body.   
     
     
         2 . The self-cleaning, reusable dispensing system for viscous fluids of  claim 1  wherein said valve body has a multi stepped external diameter with an internally threaded lower portion, a centrally located tapered transition portion, and an upper cylindrical portion with an open upper end and an inner beveled periphery around which at least three arms extend therefrom connecting to a solid stub that extends normally along a longitudinal axis of said valve body. 
     
     
         3 . The self-cleaning, reusable dispensing system for viscous fluids of  claim 2  wherein said valve cap has multi stepped internal diameter that has a lower shaft ending in a transition, centrally tapering ring ending in an upper shaft ending in a tapered shaft having an exit orifice formed at an end thereof. 
     
     
         4 . The self-cleaning, reusable dispensing system for viscous fluids of  claim 3  wherein said valve cap has a configuration and tolerances so as to conform to said valve body to form three air sealing engagements. 
     
     
         5 . The self-cleaning, reusable dispensing system for viscous fluids of  claim 3  wherein said upper cylindrical portion of said valve body is in continuous rotational contact with said upper shaft of said valve cap so as to form a second sealing engagement. 
     
     
         6 . The self-cleaning, reusable dispensing system for viscous fluids of  claim 5  wherein said centrally tapering ring of said valve cap is matingly conformed for a first sealing engagement with said transition portion of said valve body. 
     
     
         7 . The self-cleaning, reusable dispensing system for viscous fluids of  claim 6  wherein said solid stub of said valve body matingly conforms to said exit orifice of said valve cap so as to allow a third sealing engagement. 
     
     
         8 . The self-cleaning, reusable dispensing system for viscous fluids of  claim 6  wherein when said valve cap is rotatably engaged about the exterior surface of said valve body said valve cap descends upon said valve body until said solid stub of said valve body extends through said exit orifice forming a third seal, simultaneously occurring with the contact of said tapering ring of said valve cap with said transition portion of said valve body forming a first seal. 
     
     
         9 . The self-cleaning, reusable dispensing system for viscous fluids of  claim 6  further comprising:
 a winder key having a round tubular configuration with a rounded distal end and a rounded proximate end that has a planar grip extending therefrom and a through slot extending from the distal end partway along the longitudinal axis of the winder key; and 
 a flexible, thin, winder plate that is partially coiled so as to form a partially enclosed tubular pocket thereon; 
 wherein the end of a soft tube filled with said viscous fluid is inserted into said pocket and said slot of said winder key is slid over the end of said soft tube in said pocket such that as said winder key is wound, the soft tube is drawn into the winder plate pocket and frictional engagement between the tube and the inside surface of the winder plate pocket keeps the soft tube from uncoiling.