Sliding compression air seal for removable electronic units
AssigneeWestinghouse Electric Corp.
InventorsAlfred A. Zucchi, Frank E. Altoz, John W. Hughes
Life of this patent
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Abstract
The compression air seal for containing air between equipment racks and electronic modules is described incorporating a metal base having a slot opening and an inclined or tapered upper surface with respect to the lower surface, a double layer of elastomeric material having two hardness values one upon the other in enclosing the opening and a coating of low-friction material over the upper elastomeric material to facilitate low friction when an electronic module having a tapered surface is slid over and compresses the seal.
Claims20
An air seal comprising:
- a base having a lower surface and an upper surface inclined with respect to said lower surface;
- said base having an opening from said lower to said upper surface for the passage of air;
- a first layer of elastomeric material attached to said upper surface positioned in a closed path around said opening;
- and
- a second layer of elastomeric material attached to the upper surface of said first layer of elastomeric material overlying said closed path around said opening.
Apparatus for coupling air between a chassis having an air duct and a removable module having an air cavity comprising:
- means for engaging said module with said chassis including means for sliding said module along a path toward a predetermined position;
- an air seal extending from said chassis to said module when said module is in said predetermined position;
- said air seal including a base having a lower surface attached to said chassis and having an upper surface inclined with respect to said lower surface;
- said base having an opening from said lower to said upper surface for the passage of air;
- a first layer of elastomeric material attached to said upper surface positioned in a closed path around said opening;
- a second layer of elastomeric material attached to the upper surface of said first layer of elastomeric material overlying said closed path around said opening;
- said first and second layers of elastomeric material compressed below their normal height at times said module is in said predetermined position;
- first means for coupling said opening to said air duct;
- and
- second means for coupling said opening to said air cavity at times said module is in said predetermined position.
Dependencies are inferred from the claim text.