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US 5,117,587 AGranted
Sealing structure
AssigneeRJF International Corporation
InventorDaniel C. Doan
Life of this patent
Estimating the term…
Abstract
Sealing structure for providing a seal between the perimeter of a door and a surrounding structure such as a door frame. The sealing structure is preferably formed as a tri-part extrudate and is particularly useful in providing a seal for a structure (e.g., a refrigerator, freezer, walk-in freezer, etc.) where it is desirable to obtain a hermetic and/or thermal seal.
Claims9
An extrudate for use in forming a seal for an edge of a door jamb having an angular profile, said extrudate comprising:
- (a) a base comprising a pair of legs forming an angular profile matching the angular profile of the jamb,
- (b) a connecting member extending away from the base and adapted to connect the base to the door jamb,
- (c) a honeycomb seal structure connected to the base and extending inward from the base, said honeycomb seal structure adapted to form a compression seal with a door when the door is in a closed position, and
- (d) a secondary seal extending away from one leg of the base and adapted to form an additional compression seal between a selected edge portion of a door and the one leg of the base when the door is in a closed position;
- wherein said extrudate comprises three different materials, said base comprising a relatively rigid material forming said pair of legs, said honeycomb seal structure comprising an outer web formed of a relatively flexible material, said outer web extending between said pair of legs and cooperating therewith to define a main fluid chamber, said honeycomb seal structure having an inner web disposed within said main chamber and dividing said main chamber into a plurality of sections, said inner web formed of a third material with better recovery to compression than said second material, and said secondary seal being formed of said third material.
2 more elements
An extrudate for use in forming a seal for an edge of a door jamb having an angular profile, said extrudate comprising
- (a) a base comprising a pair of legs forming an angular profile matching the angular profile of the jamb,
- (b) a connecting member extending away from the base and adapted to connect the base to the door jamb, and
- (c) a honeycomb seal structure connected to the base and extending inward from the base, said honeycomb seal structure adapted to form a compression seal with a door when the door is in a closed position,
- (d) said base comprising a relatively rigid material forming said pair of legs, said honeycomb seal structure comprising an outer web formed of a relatively flexible material, said outer web extending between said pair of legs and cooperating therewith to define a main fluid chamber, said outer web comprising a convex front portion extending away from one leg of said base and a concave back portion extending away from the other leg of said base, said honeycomb seal structure further having an inner web disposed within said main chamber and dividing said main chamber into a plurality of sections, said inner web formed of a third material with better recovery to compression than said second material, said inner web comprising an inner portion extending across and disposed opposite part of said convex front portion of said outer web and a stem portion extending from said inner portion to a position substantially adjacent the corner of said base.
1 more element
Dependencies are inferred from the claim text.