Patent classifications
B21D51/22
Method for producing pot-shaped components in a shaping process
A method for producing a pot-shaped component from a flat blank. The method comprises the following steps: a) shaping the flat blank in at least one deep-drawing step to form a pot-shaped raw component having a substantially flat bottom area and a circumferential frame, and b) shaping the pot-shaped raw component in a tool having a conically tapered die that applies shear to the circumferential surface of the frame in the axial direction against the conically tapered die. In step b), the bottom area is clamped between an ejector and a hold-down mechanism and the conically tapered die surrounds the bottom area of the raw component radially on the outside and extends in a diameter-reducing manner in a tool stroke.
Cookware formed of a single metal sheet and method for making same
The profile shape of the vessel body and of handle portion is formed from a single sheet of metal to create a flat by cutting, stamping or blanking. An opening is created in the handle portion to reduce heat propagation. The shape of the pan body is formed by spinning with the flat handle portion. The handle is formed by creating three-dimensional contours in the handle portion of the blank. The neck portion has a flat section adjacent the pan body followed by sections of different curvature. One section of the neck portion has a deeply curved cross-section. That neck portion transitions to the hand grip portion which has a reduced curvature, particularly toward the unattached end of the handle. The neck portion may have a W cross sectional shape. The handle grip portion may have a U shaped cross-section for comfort.
Cookware formed of a single metal sheet and method for making same
The profile shape of the vessel body and of handle portion is formed from a single sheet of metal to create a flat by cutting, stamping or blanking. An opening is created in the handle portion to reduce heat propagation. The shape of the pan body is formed by spinning with the flat handle portion. The handle is formed by creating three-dimensional contours in the handle portion of the blank. The neck portion has a flat section adjacent the pan body followed by sections of different curvature. One section of the neck portion has a deeply curved cross-section. That neck portion transitions to the hand grip portion which has a reduced curvature, particularly toward the unattached end of the handle. The neck portion may have a W cross sectional shape. The handle grip portion may have a U shaped cross-section for comfort.
STAY-FLAT SHEET PAN
A method for making a flat sheet pan includes providing a piece of material having known dimensions; and forming a baking surface therein; forming an upwardly extending tension bow in the baking surface for providing structural reinforcement to the baking surface; forming a sidewall portion that surrounds the entire baking surface and defines an interior surface of the sheet pan and an exterior surface of the sheet pan; forming a structural reinforcement rib in the sidewall portion; providing a band of material that surrounds an entire upper region of the sidewall portion above the structural reinforcement rib that is operative to provide structural reinforcement to the sheet pan; rolling the topmost region of the sidewall portion downward and away from the baking surface to form a rim having an outside portion that defines the outer edge of the sheet pan and an inside portion that abuts the sidewall portion on the exterior surface of the sheet pan; and completely enclosing the band of material within the rim by crimping the inside portion of the rim against the exterior surface of the sheet pan for creating a seal that prevents contaminants from entering the interior of the rim.
STAY-FLAT SHEET PAN
A method for making a flat sheet pan includes providing a piece of material having known dimensions; and forming a baking surface therein; forming an upwardly extending tension bow in the baking surface for providing structural reinforcement to the baking surface; forming a sidewall portion that surrounds the entire baking surface and defines an interior surface of the sheet pan and an exterior surface of the sheet pan; forming a structural reinforcement rib in the sidewall portion; providing a band of material that surrounds an entire upper region of the sidewall portion above the structural reinforcement rib that is operative to provide structural reinforcement to the sheet pan; rolling the topmost region of the sidewall portion downward and away from the baking surface to form a rim having an outside portion that defines the outer edge of the sheet pan and an inside portion that abuts the sidewall portion on the exterior surface of the sheet pan; and completely enclosing the band of material within the rim by crimping the inside portion of the rim against the exterior surface of the sheet pan for creating a seal that prevents contaminants from entering the interior of the rim.
Stay-flat sheet pan
A sheet pan that includes a baking surface with an upwardly-extending tension bow formed therein that provides structural reinforcement to the baking surface; a sidewall portion surrounding the entire baking surface and defines an interior surface of the sheet pan and an exterior surface of the sheet pan, wherein the sidewall portion further includes a structural reinforcement rib formed therein, wherein the topmost region of the sidewall portion is rolled downward and away from the baking surface to form a rim having both an outside portion that defines the outer edge of the sheet pan, and an inside portion, and wherein the inside portion of the rim abuts the sidewall portion on the exterior surface of the sheet pan, and a reinforcing wire surrounding the upper region of the sidewall portion, wherein the wire is completely enclosed by and sealed within the rim, and wherein any significant open volume between the wire and the rim has been eliminated.
Stay-flat sheet pan
A sheet pan that includes a baking surface with an upwardly-extending tension bow formed therein that provides structural reinforcement to the baking surface; a sidewall portion surrounding the entire baking surface and defines an interior surface of the sheet pan and an exterior surface of the sheet pan, wherein the sidewall portion further includes a structural reinforcement rib formed therein, wherein the topmost region of the sidewall portion is rolled downward and away from the baking surface to form a rim having both an outside portion that defines the outer edge of the sheet pan, and an inside portion, and wherein the inside portion of the rim abuts the sidewall portion on the exterior surface of the sheet pan, and a reinforcing wire surrounding the upper region of the sidewall portion, wherein the wire is completely enclosed by and sealed within the rim, and wherein any significant open volume between the wire and the rim has been eliminated.
COOKING VESSEL AND METHOD FOR MANUFACTURING A COOKING VESSEL
The present invention relates to a cooking vessel having a side wall connected to a base made up of at least three layers of material, namely, a top layer, a bottom layer, and an intermediate layer. The base includes an empty space that extends around the periphery of the base and is delimited between the bottom layer, the top layer, and the peripheral edge or a top peripheral annular face of the intermediate layer. The cooking vessel is characterized in that the vessel comprises a filling element adapted to fill the empty space.
COOKING VESSEL AND METHOD FOR MANUFACTURING A COOKING VESSEL
The present invention relates to a cooking vessel having a side wall connected to a base made up of at least three layers of material, namely, a top layer, a bottom layer, and an intermediate layer. The base includes an empty space that extends around the periphery of the base and is delimited between the bottom layer, the top layer, and the peripheral edge or a top peripheral annular face of the intermediate layer. The cooking vessel is characterized in that the vessel comprises a filling element adapted to fill the empty space.
COOKWARE FORMED OF A SINGLE METAL SHEET AND METHOD FOR MAKING SAME
The profile shape of the vessel body and of handle portion is formed from a single sheet of metal to create a flat by cutting, stamping or blanking. An opening is created in the handle portion to reduce heat propagation. The shape of the pan body is formed by spinning with the flat handle portion. The handle is formed by creating three-dimensional contours in the handle portion of the blank. The neck portion has a flat section adjacent the pan body followed by sections of different curvature. One section of the neck portion has a deeply curved cross-section. That neck portion transitions to the hand grip portion which has a reduced curvature, particularly toward the unattached end of the handle. The neck portion may have a W cross sectional shape. The handle grip portion may have a U shaped cross-section for comfort.