HVAC register box

Details HVAC register box HVAC register box

1994-12-19

1998-05-12

Wood, Wynn E.

Static structures (e.g., buildings)

Wall, ceiling, floor, or roof designed for ventilation or...

523027, 454330, 723792, E04F 1704

Patent

active

057491909

ABSTRACT:
An HVAC register box having no welded or riveted corners and the process for making same by means of fabrication from a single sheet of material without cutting. The highly simplified process for fabrication produces a register box which has superior rigidity and resistance to air leakage at the joints or corners.

REFERENCES:
patent: 820976 (1906-05-01), Kotzinger
patent: 4088463 (1978-05-01), Smith
patent: 4305340 (1981-12-01), Iwaki et al.
patent: 4754696 (1988-07-01), Sarazen et al.
patent: 4858520 (1989-08-01), Prochnow et al.

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