Apparatus and methods of forming a display case door and frame
First Claim
1. A frame for an opening in a refrigerated display case for receiving and supporting one or more doors for allowing access into the case, the frame comprising:
- a first wall extending rearwardly from a forward portion of the opening wherein the first wall is formed from steel and includes a bend in the wall, a second wall extending from the first wall in a second direction and a third wall extending from the second wall in a direction different form the second direction to define a recess between the first, second and third walls; and
a contact plate supported by the bend in the first wall and extending between the first and third walls.
7 Assignments
0 Petitions
Accused Products
Abstract
Perimeter frame rails and door frames rails are described for a more thermally efficient and cost-effective display case such as for refrigerated display cases. The frames are preferably formed from cold rolled steel. A perimeter frame may include first, second and third walls defining an opening or a recess that can be closed by a contact plate. A door for a refrigerated display case may include a glass unit and a forward portion extending inwardly from a perimeter frame edge portion toward an edge of the forward glass pane and a first side portion extends rearwardly to a groove. An insulating member insulates the door rail from the cold area and includes a portion engaging the groove. A glass door is also provided for a refrigerated display case having a first glass panel, a second glass panel, and low emissivity coatings on the inside surfaces of the first and second glass panels. One or more intermediate glass panels can also be included. Spacer assemblies are used to separate adjacent glass panels and preferably include a desiccant-embedded sealant. Preferably, little or no metal structures are used in the spacers.
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Citations
50 Claims
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1. A frame for an opening in a refrigerated display case for receiving and supporting one or more doors for allowing access into the case, the frame comprising:
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a first wall extending rearwardly from a forward portion of the opening wherein the first wall is formed from steel and includes a bend in the wall, a second wall extending from the first wall in a second direction and a third wall extending from the second wall in a direction different form the second direction to define a recess between the first, second and third walls; and
a contact plate supported by the bend in the first wall and extending between the first and third walls. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A mullion for combining with a perimeter frame for an opening in a refrigerated display case for receiving and supporting one or more doors for allowing access into the case, the mullion comprising:
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at least first and second walls to define a recess between the first and second walls and formed from rolled steel and wherein at least one of the first and second walls includes at least one bend in the wall; and
a contact plate extending between the first and second walls closing the recess. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A door for a refrigerated display case, the door comprising:
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a glass unit including a forward glass pane and a rearward glass pane for allowing viewing of product within the display case;
a door frame for surrounding and supporting the glass unit;
the door frame being formed from rolled steel and including a perimeter frame edge portion and a forward portion extending inwardly from the perimeter frame edge portion toward an edge of the forward glass pane and a first side portion extending rearwardly from the perimeter edge portion and a second wall extending inwardly from the first side portion and a third wall together defining a groove; and
a plastic insulating assembly having at least one anchor portion extending into the groove. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39)
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40. A door for a refrigerated display case, the door comprising:
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a glass unit including a forward glass pane and a rearward glass pane for allowing viewing of product within the display case;
a door frame for surrounding and supporting the glass unit, at least one side of the door frame including a forward portion extending partly over a surface of the forward glass pane, a rearward portion extending inwardly toward the glass unit and rearward of the forward portion and a side wall extending between the forward portion and the rearward portion; and
an insulating portion engaging the rearward portion and extending from the rearward portion inwardly and contacting a surface of the rearward glass pane. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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Specification