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US 12,728,437 B2Granted
Multi-cartridge drain guns, accessories therefor, and methods of use and manufacture thereof
AssigneeDiversitech Corporation
InventorsMark Campbell Logan, Bryce Lowe, James A. Kitchen, Jonathan Sada, Keith Platt
Life of this patent
Estimating the term…
Abstract
A drain gun includes a handle and a trigger. The handle includes a channel and a plurality of inlets. The inlets feed the channel. The trigger causes a staged release of a plurality of fluids from a plurality of cartridges to the channel via the inlets when the cartridges are stored in the handle and feeding the inlets.
Claims20
A method, comprising:
- enabling an end user to:
- couple a device to (a) a drain gun hosting a plurality of cartridges storing a plurality of fluids and (b) a drain line of a heating, ventilation, and air conditioning (HVAC) system or a refrigeration system, wherein the drain gun has a handle storing the cartridges side-by-side with each other, wherein the drain gun has a plurality of valves which the cartridges feed, wherein the drain line is clogged;
- and
- output the fluids from the drain gun controllably in stages via the valves such that the device engages with the drain line and the drain line is unclogged thereby.
1 more element
Dependencies are inferred from the claim text.