Metal deforming – By use of closed-die and coacting work-forcer – Cup or shell drawing
Reexamination Certificate
2011-06-28
2011-06-28
Sullivan, Debra M (Department: 3725)
Metal deforming
By use of closed-die and coacting work-forcer
Cup or shell drawing
C029S890141
Reexamination Certificate
active
07966857
ABSTRACT:
An HVAC connector is disclosed that includes a one-piece conduit. The conduit includes a generally planar, rectangular mounting flange that defines an air inlet into the conduit. A first body portion extends from the mounting flange and a second body portion extends from the first body portion to define a generally tubular takeoff neck having a round outlet that is disposed generally parallel to the mounting flange.
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High Efficiency Takeoffs (H.E.T.O), 1 page, Sheet Metal Connectors, Inc. (publicly available prior to Jun. 27, 2006).
Sheet Metal Connectors, Inc., Specifications for “The E-Z Flange Spiral Pipe System”, Mar. 2004, 24 pages.
Sheet Metal Connectors, Inc.
Sullivan Debra M
Westman Champlin & Kelly P.A.
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