Universal valve core removal tool and kit
AssigneeMastercool, Inc.
InventorsMichael Barjesteh, Nader Barjesteh
Life of this patent
Estimating the term…
Abstract
A tool for a pressurized refrigeration system having a valve with a removable valve core comprises: a valve assembly having a first opening and a second opening and a shut-off valve, the shut-off valve adapted to close and open a passageway between the first opening and the second opening; a valve adapter coupled to the first opening, wherein the valve adapter is adapted to couple to the valve; and, a shaft assembly coupled to the second opening, the shaft assembly having a shaft adapted to move through the passageway, when the shut-off valve is open, and engage the removable valve core. The removable valve core can be removed, while under pressure, from the valve, by rotating the shaft to extract the removable valve core in a controlled manner.
Claims20
The tool for a pressurized refrigeration system having a valve with a removable valve core, comprising:
- a valve assembly having a first opening and a second opening and a shut-off valve, said shut-off valve having positions to close and open a passageway between said first opening and said second opening;
- a valve adapter for coupling to the valve, said valve adapter coupled to said first opening;
- and,
- a shaft assembly coupled to said second opening, said shaft assembly having a shaft to move through said passageway, when said shut-off valve is open, and engage the removable valve core, said shaft further having a threaded portion controlling axial movement of said shaft through said passageway;
- wherein the removable valve core can be removed, while under pressure, from the valve, in that rotating said shaft provides controlled extraction of the removable valve core.
A tool kit for a pressurized refrigeration system having a valve with a removable valve core, comprising:
- a valve assembly having a first opening and a second opening and a shut-off valve, said shut-off valve having positions to close and open a passageway between said first opening and said second opening;
- at least one interchangeable adapter for coupling to the valve, removably coupled to said first opening;
- and,
- at least one interchangeable shaft assembly removably coupled to said second opening, said interchangeable shaft assembly having a shaft to move through said passageway, when said shut-off valve is open, and engage the removable valve core, said interchangeable shaft having a threaded portion controlling axial movement of said shaft through said passageway;
- wherein the removable valve core can be removed while under pressure, from the access fitting.
Dependencies are inferred from the claim text.