Device for capping and sealing refrigeration service valve fittings of quick disconnect type
First Claim
1. A device for capping and sealing a refrigeration service valve fitting of quick disconnect type for minimizing unwanted seepage of refrigerant from the fitting, said device comprising:
- a cap defining a base and an open-ended sealing portion extending longitudinally from said base, said sealing portion defining first and second internal cylindrical surfaces;
said first internal cylindrical surface defining a first internal diameter and said second internal cylindrical surface defining a second internal diameter greater than said first diameter;
a first shoulder defining a boundary between said first and said second internal cylindrical surfaces;
said first internal cylindrical surface defining at least a first annular groove therein spaced apart from said first shoulder;
an annular, flexible sealing member positioned and held within said groove and extending inwardly from said first internal cylindrical surface for sealingly engaging said fitting when said device is positioned on said service valve fitting; and
means in operative relationship with said sealing portion for removably retaining said device on said service valve fitting.
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Accused Products
Abstract
A device for capping and sealing a refrigeration service valve fitting of quick disconnect type for minimizing unwanted seepage of refrigerant from the fitting. The device includes a cap defining a base and an open-ended sealing portion extending longitudinally from the base. The sealing portion defines first and second internal cylindrical surfaces wherein the first surface defines a first internal diameter and the second surface defines a second internal diameter greater than the first diameter and wherein a shoulder defines a boundary between the surfaces. The first surface defines a groove containing an annular flexible member for sealingly engaging the fitting when the device is positioned on the fitting. Features are provided in relationship with the sealing portions for removably retaining the device on the fitting by engaging a conventional lock groove in the fitting.
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Citations
9 Claims
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1. A device for capping and sealing a refrigeration service valve fitting of quick disconnect type for minimizing unwanted seepage of refrigerant from the fitting, said device comprising:
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a cap defining a base and an open-ended sealing portion extending longitudinally from said base, said sealing portion defining first and second internal cylindrical surfaces; said first internal cylindrical surface defining a first internal diameter and said second internal cylindrical surface defining a second internal diameter greater than said first diameter; a first shoulder defining a boundary between said first and said second internal cylindrical surfaces; said first internal cylindrical surface defining at least a first annular groove therein spaced apart from said first shoulder; an annular, flexible sealing member positioned and held within said groove and extending inwardly from said first internal cylindrical surface for sealingly engaging said fitting when said device is positioned on said service valve fitting; and means in operative relationship with said sealing portion for removably retaining said device on said service valve fitting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification