Liquid spray system
AssigneeSeymour of Sycamore Inc.
InventorChristopher Heatley
Life of this patent
Estimating the term…
Abstract
A spray system for dispensing a homogenous mixture of a liquid formulation and propellant as an atomized aerosol where a disposable container containing a liquid base is used alone or secured within a rigid container and is charged through a fitting in fluid communication with the interior of the disposable container using a detachable pressurized charge can containing a propellant compatible with the liquid base. Preferably the liquid formulation is a paint base that can be tinted at the point of sale before charging with the charge can.
Claims19
A spray system for liquids comprising, in combination,
- a) a disposable container having an upper end, lower end, and an interior cavity, where the lower end has an inlet fitting that is in fluid communication with the interior cavity;
- b) a sealing cap configured for removable connection to the upper end of the disposable container and containing a bearing surface;
- c) a valve assembly comprising an fitting, a flange and a dip tube configured to fit within the upper end of the disposable container such that the dip tube is within the interior cavity, where the flange is configured to form a seal with the bearing surface of the sealing cap;
- and
- d) a charge can comprising an outlet fitting, where the outlet fitting is configured to allow fluid communication with the inlet fitting.
A spray system for liquids comprising, in combination,
- a) a disposable container having an upper end and an interior cavity;
- b) a rigid container having an upper end and an interior space configured to accept a portion of the disposable container;
- c) a rigid cap configured for removable connection to the upper end of the rigid container;
- d) a valve assembly comprising an fitting, a flange and a dip tube, where the flange is configured to form a pressure seal with the rigid cap;
- and
- e) a charge can comprising an outlet fitting configured to engage and connect to the valve assembly fitting or to an inlet fitting in fluid communication with the interior space.
A method of preparing a liquid spray system comprising, in combination, the following steps,
- a. adding one or more compounds to a disposable container having an upper end and containing a base liquid formulation in an interior cavity;
- b. installing a valve assembly comprising a fitting, a flange and a dip tube into the upper end of the disposable container;
- c. inserting the disposable container into a rigid container and attaching a rigid cap to cause the valve assembly to form a pressure seal with the upper end of the disposable container and allowing access to the fitting;
- d. connecting, directly or indirectly, a charge can containing a pressurized propellant to the valve assembly fitting;
- e. transferring the pressurized propellant from the charge can into the cavity of the disposable container;
- f. disconnecting the charge can from the fitting;
- and
- g. attaching a spray head to the valve assembly fitting.
A method of preparing a liquid spray system comprising, in combination, the following steps,
- a. adding one or more compounds to a disposable container having an upper end and containing a base liquid formulation in an interior cavity;
- b. installing a valve assembly comprising a fitting, a flange and a dip tube into the upper end of the disposable container;
- c. attaching a sealing cap to the upper end of the disposable container to form a pressure seal with flange of the valve assembly and the upper end of the disposable container;
- d. connecting, directly or indirectly, a charge can containing a pressurized propellant to the valve assembly fitting;
- e. transferring the pressurized propellant from the charge can into the cavity of the disposable container;
- f. disconnecting the charge can from the fitting;
- and
- g. attaching a spray head to the valve assembly fitting either before attaching the charge can or after attaching the charge can.
Dependencies are inferred from the claim text.