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Frameless viewport

Inactive Publication Date: 2006-12-21
YORK INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] A further advantage of the present invention is that it requires fewer parts.
[0009] A still further advantage of the present invention is that it has a compact construction.

Problems solved by technology

Unfortunately, the frame adds significant expense to the viewport construction.

Method used

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  • Frameless viewport
  • Frameless viewport
  • Frameless viewport

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] One embodiment of a viewport 10 is shown in FIGS. 1 and 2. Preferably, viewport 10 is used with an air handling unit (not shown), the view port 10 being formed in a wall or an access door of the air handling unit. An opening 14 is formed in a panel 12 and an opening 18 is formed in a panel 16, the openings 14, 18 being substantially aligned when the panels 12, 16 are brought together during assembly. A pane 22 of a substantially transparent material having suitable optical, strength and thermal insulative properties, sized slightly larger than the openings 14, 16, is provided for insertion between the panels 12, 16 in substantial alignment with the openings 14, 16. To permit pane 22 to span the distance between the panels 12, 16 as assembled, a spacer 24 is interposed between one side of pane 22 and panel 12, as shown in FIG. 1. The combination of pane 22 and spacer 24 defines a pane subassembly 20. Preferably, a tape 32 having opposed adhesive surfaces is applied along the p...

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PUM

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Abstract

A viewport including substantially aligned openings disposed in inner and outer panels for a door or wall is provided. A pane assembly configured to permit viewing therethrough is provided, the pane assembly being secured into position between the inner and outer panels in alignment with the openings. An injected insulating material is disposed between the inner and outer panels and around the pane assembly to substantially fill an open space between the inner and outer panels, the insulating material being configured and disposed to maintain the secured position of the pane assembly.

Description

FIELD OF THE INVENTION [0001] The present invention is directed to a viewport for use with a door or wall, and more particularly, is directed to a frameless viewport for a door of an air handling unit. BACKGROUND OF THE INVENTION [0002] Viewports for doors are desirable as they provide a means to visually perceive what is otherwise hidden by the door without having to open the door. This capability is especially desirable for access doors for air handling units, wherein operation of a ventilation system must typically be interrupted to safely open the access door. Similarly, viewports can be installed in wall panels of an enclosure. Typically, the viewport includes a frame surrounding one more panes of a transparent material. The panes are typically environmentally sealed to prevent the formation of condensation between the panes, which obscures viewing through the panes. The frame typically is provided in two portions, each portion being assembled to openings formed in opposed door...

Claims

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Application Information

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IPC IPC(8): E04C2/54
CPCE06B3/5892E06B3/56
Inventor HORD, CHRISTOPHER A.
Owner YORK INT