摘要:
A method of making an eyewear frame having substantially rigid sections joined with a soft and/or flexible nose bridge. The substantially rigid sections and soft and/or flexible nose bridge are made in separate molding processes. The cured substantially rigid sections and cured soft and/or flexible nose bridge are then joined together in a further molding process by injecting a bonding material into interfaces between the soft and/or flexible nose bridge and the respective substantially rigid sections. The eyewear frame may be painted. A pre-painting surface treatment may be applied to the soft and/or flexible nose bridge before it is joined with the substantially rigid right and left sections.
摘要:
A method of manufacturing different shopping cart models is provided. The method includes providing multiple sets of base modules, providing at least one set of tubular side uprights, and selecting a base module from each of the different sets thereof. For each selected base module, selecting a pair of tubular side uprights from any one of the at least one set thereof. For each selected base module, aligning the mounting surfaces of the selected pair of tubular side uprights with the respective mounting surfaces of the selected base module, and securing the mounting surfaces together so that the upper portions of the selected tubular side uprights extend upward from the base module in parallel relation to each other. For each selected base module, mounting at least one shopping cart basket to the tubular side uprights.
摘要:
A method of manufacturing different shopping cart models is provided. The method includes providing multiple sets of base modules, providing at least one set of tubular side uprights, and selecting a base module from each of the different sets thereof. For each selected base module, selecting a pair of tubular side uprights from any one of the at least one set thereof. For each selected base module, aligning the mounting surfaces of the selected pair of tubular side uprights with the respective mounting surfaces of the selected base module, and securing the mounting surfaces together so that the upper portions of the selected tubular side uprights extend upward from the base module in parallel relation to each other. For each selected base module, mounting at least one shopping cart basket to the tubular side uprights.
摘要:
The modular plastic shopping cart comprises a wheeled base comprising two opposite vertical side sections each having at least one horizontally projecting member providing a support surface; two side uprights removably connectable to the wheeled base, predetermined cooperating shapes of the wheeled base and the side uprights preventing, when assembled, relative pivoting and sliding movement between the side uprights and the wheeled base; a basket removably connectable to the side uprights, predetermined cooperating shapes of the side uprights and the basket preventing, when assembled, relative pivoting and sliding movement between the basket and the side uprights; first securing device for securing the side uprights to the wheeled base; and second securing device for securing the basket to the side uprights.
摘要:
The present invention includes a shopping cart frame with mounting bracket units connecting caster wheels and having a plate secured underneath the base with a caster pin receiving hole and spaced-apart flanges flanking the hole and abutting on the base; a shopping cart with a support bar between side uprights for forwardly propping up a primary basket and rearwardly hanging a secondary basket; a cart with a plastic basket having rear structural tubes sheathing the frame's side uprights and being secured thereto; a modular method of making different cart models by providing multiple sets of components with cooperating mounting surfaces for interconnection; a modular plastic basket with a hooked-on suspended tray and a channel-shaped overlay detachably snapped over the edge and tray; a one-piece molded plastic basket with independent branching tubular sections with different thicknesses; and an independent gas-assisted injection method for molding a one-piece plastic basket.
摘要:
The present invention includes a shopping cart frame with mounting bracket units connecting caster wheels and having a plate secured underneath the base with a caster pin receiving hole and spaced-apart flanges flanking the hole and abutting on the base; a shopping cart with a support bar between side uprights for forwardly propping up a primary basket and rearwardly hanging a secondary basket; a cart with a plastic basket having rear structural tubes sheathing the frame's side uprights and being secured thereto; a modular method of making different cart models by providing multiple sets of components with cooperating mounting surfaces for interconnection; a modular plastic basket with a hooked-on suspended tray and a channel-shaped overlay detachably snapped over the edge and tray; a one-piece molded plastic basket with independent branching tubular sections with different thicknesses; and an independent gas-assisted injection method for molding a one-piece plastic basket.
摘要:
Making jacketed pipe using metal strip coated with a plastic coating compatible with the jacket material. After the strip is formed into tube by turning over longitudinal edges of the strip, the jacketing material is then extruded onto the tube under an extrusion pressure insufficient to cause tube collapse. This is conveniently done by the known "tubing" process. Subsequent to the extrusion step, the jacket material is subjected to radial inward pressure also insufficient to cause tube collapse. This pressure reduces the outside diameter of the jacket and presses it against the coating on the tube. The inward pressure step is performed while residual heat from extrusion remains at the inner surface of the jacket to fuse the jacket to the plastic coating. Inward pressure is preferably applied by a polishing die.
摘要:
A collapsible compartment of a shopping cart. The collapsible compartment includes a swinging rear wall and fixed side walls of the shopping cart and a pivoting assembly. The pivoting assembly includes a pivoting base wall having a first edge for pivot connection to the swinging rear wall and a second edge opposite the first edge. It further includes a pivoting front wall having a first edge for pivot connection between the side walls of the shopping cart, and a second edge, opposite the first edge thereof, pivotally connected to the second edge of the pivoting base wall. The compartment further includes a pivoting panel assembly having a panel pivotable between a first position where the panel rests over the base wall and a second position where the panel is covering leg holes in the swinging rear wall, and an out of reach spring element to urge the panel in the second position.
摘要:
In a method of applying a jacket to a metal shield of a cable, the jacket comprises a polyolefin having a modifier provided by a carboxylic acid or its anhydride. As the jacket extrudate passes onto the shield, air pressure is lowered at the surface of the shield to provide intimate overall contact between jacket and shield. Heating, additional to that provided by the extrudate, is employed to raise the outside bonding temperature of the shield up to at least the bonding temperature of the modifier so as to provide a bond between the jacket and the shield.