Method of manufacturing a door edge guard
AssigneeAdell Corporation
InventorGerald R. Schotthoefer
Life of this patent
Estimating the term…
Abstract
Disclosed is an insulated metal door edge guard having a stainless steel body, a PVC cover, and a sheet of colored PVF. The PVC cover is coextruded completely around the metal body in strip form. Then, before the heat of the coextrusion step is lost, the PVF sheet is laminated onto one surface of the PVC cover. The combination is then roll formed into a door edge guard having a base and two legs. The ends of the legs are folded inward to form two beads. The PVC cover has two regions of decreased thickness on the interior of the beads to facilitate the roll forming of the beads.
Claims6
A method of manufacturing a door edge guard for protecting the trailing edge of a door, comprising the steps of:
- coextruding an insulating cover completely around a continuous metal strip, forming two regions of decreased thickness in the insulating cover;
- laminating a strip of colored material onto one surface of the insulating cover before the cover has lost the heat of the coextrusion step;
- roll forming the combination of the metal strip, the insulating cover, and the colored material into a shape having a curved base adapted to fit over the edge and legs extending from the base to fit against the sides of the door against the edge, and folding the legs inward toward one another to form beads, wherein the two regions of decreased thickness in the insulating cover become interior portions of the beads and facilitate the forming of the beads and wherein the colored material is on the exterior side of the base and the legs;
- and
- cutting the formed combination to a desired length.
A method of manufacturing a door edge guard for protecting the trailing edge of a door, comprising the steps of:
- coextruding an insulating cover of polyvinylchloride completely around a continuous strip of stainless steel, forming two regions of decreased thickness in the insulating cover;
- laminating a strip of colored polyvinylfluoride onto one surface of the insulating cover before the cover has lost the heat of the coextrusion step;
- roll forming the combination of the stainless steel strip, the insulating cover, and the colored polyvinylfluoride into a shape having a curved base adapted to fit over the edge and legs extending from the base to fit against the sides of the door adjacent the edge, and folding the legs inward toward one another to form beads, wherein the two regions of decreased thickness in the insulating cover become interior portions of the beads and facilitate the forming of the beads and wherein the colored polyvinylfluoride is on the exterior side of the base and the legs;
- and
- cutting the formed combination to a desired length.
A method of manufacturing a door edge guard for protecting the trailing edge of a door, comprising the steps of:
- coextruding an insulating cover completely around a continuous metal strip, forming a region of decreased thickness in the insulating cover;
- laminating a strip of colored material onto one surface of the insulating cover before the cover has lost the heat of the coextrusion step;
- roll forming the combination of the metal strip, the insulating cover, and the colored material into a shape having a curved base adapted to fit over the edge and legs extending from the base to fit against the sides of the door against the edge, and folding one of the legs to form a bead, wherein the region of decreased thickness in the insulating cover becomes an interior portion of the bead and facilitates the forming of the bead and wherein the colored material is on the exterior side of the base and the legs;
- and
- cutting the formed combination to a desired length.
A method of manufacturing a door edge guard for protecting the trailing edge of a door, comprising the steps of:
- coextruding an insulating cover completely around a continuous metal strip, forming two regions of decreased thickness in the insulating cover;
- laminating a strip of colored material onto one surface of the insulating cover before the cover has lost the heat of the coextrusion step;
- roll forming the combination of the metal strip, the insulating cover, and the colored material into a shape having a curved base adapted to fit over the edge and legs extending from the base to fit against the sides of the door against the edge, and folding the legs to form beads, wherein the two regions of decreased thickness in the insulating cover become interior portions of the beads and facilitate the forming of the beads and wherein the colored material is on the exterior side of the base and the legs;
- and
- cutting the formed combination to a desired length.
Dependencies are inferred from the claim text.