Formtek, Inc.

Met-coil Systems Corporation

The Lockformer Company

Gary L Dickinson

Ashok M Shah

Richard Frank Blum

Rick Blum

A spiral pipe machine includes a feeding assembly for continuously feeding a web of material, and a forming assembly for accepting the web. The forming assembly bends the web to form a first section of a spiral pipe having a first predetermined diameter. A controller is employed for selectively instructing the forming means to change its configuration so as to give a second section of the spiral pipe a second predetermined diameter. The controller is capable of controlling the forming station to transition from the first predetermined diameter to the second predetermined diameter during the continuous feeding of the web.

Spiral pipe machine

An integral metal spacer for insulated glass units and method of fabricating the spacer. The spacer defines a substantially closed cross-section contour having a bottom surface, a pair of sidewalls, and a pair of generally abutting inner surfaces. A gap may be defined between the adjacent inner surfaces. The three interior corners are defined by fully mitered sidewalls. A pair of bridges are provided to integrally interconnect the inner surfaces of adjacent spacer segments. The method of fabricating includes taking a roll of flat metal stock and completely punching all corner and other structures therein while the stock is planar; severing the punched stock into individual spacer members; roll-forming the individual members into a finished linear spacer piece; applying desiccant during roll-forming; applying sealant; thereafter folding the elongate member into a square spacer thereby locking the desiccant therein.

Insulated glass window spacer and method for making window spacer

An integral metal spacer for insulated glass units and method of fabricating the spacer. The spacer defines a substantially closed cross-section contour having a bottom surface, a pair of sidewalls, and a pair of generally abutting inner surfaces. A gap may be defined between the adjacent inner surfaces. The three interior corners are defined by fully mitered sidewalls. A pair of bridges are provided to integrally interconnect the inner surfaces of adjacent spacer segments. The method of fabricating includes taking a roll of flat metal stock and completely punching all corner and other structures therein while the stock is planar; severing the punched stock into individual spacer members; roll-forming the individual members into a finished linear spacer piece; applying desiccant, preferably a desiccant rope material during roll-forming; applying sealant; thereafter folding the elongate member into a square spacer thereby locking the desiccant therein.

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River Grove, IL, United States of America

Gary L Dickinson