초록 ▼

A container suitable for storing and transporting photomasks and including a container body, a cover, first and second cushions and left and right channels disposed in slots formed in the container body. In one embodiment, the container of this invention is formed in a one-piece design by rotomoldin

A container suitable for storing and transporting photomasks and including a container body, a cover, first and second cushions and left and right channels disposed in slots formed in the container body. In one embodiment, the container of this invention is formed in a one-piece design by rotomolding. The cover is subsequently separated from the body and machined so as to provide a slidingly sufficient seal and disposed therein.

대표청구항 ▼

What is claimed is: 1. A method for making a container for a photomask, comprising: forming a unitary container body having a top, a bottom, a front, a back and two sides; removing portions of the container body from the two sides to define side slots; inserting channels into the side slots; meltin

What is claimed is: 1. A method for making a container for a photomask, comprising: forming a unitary container body having a top, a bottom, a front, a back and two sides; removing portions of the container body from the two sides to define side slots; inserting channels into the side slots; melting adjacent portions of the container body and channels to secure the channels in the side slots; and forming a cover, the cover fitting the container. 2. The method of claim 1, in which the container body is formed by one of injection molding, blow molding, and rotation molding. 3. The method of claim 1, in which the container body is formed from a synthetic resin. 4. The method of claim 3, in which the cover is formed by being separated from the container body. 5. The method of claim 1, in which the container body is formed from polyethylene. 6. The method of claim 1, in which the container body is formed from polyethylene, an electrical conductor dispersed in the polyethylene. 7. The method of claim 1, in which portions of the container body are removed by machining. 8. A method of manufacturing containers of a length, a width and of a selectable height for substrates, the container having a top wall, a bottom wall, a pair of side walls, a closed end, and open end, and a cover to extend over the open end, the method comprising the steps of: a) providing a rotational mold with inside surfaces defining a mold cavity with end cavity portions larger than an adjacent cavity midportion, the end cavity portion for forming an end portion on the body preform, the cavity midportion for forming a midportion on the body preform; b) molding the body preform by: i) insertion of resin into the mold; ii) heating the mold to melt the resin; iii) rotating the mold to disperse the molten resin along the inside surfaces; iv) allowing the molten resin to harden into the body preform with an end portion having a height and width greater that an adjacent midportion; v) removing the body preform from the mold; c) cutting through the body preform thereby severing at least a portion of the end portions; d) removal of elongate portions of each of the sidewalls to create apertures therein; and e) welding plastic inserts in said apertures. 9. The method of claim 8 further comprising the step of providing resin of sufficient quantity that body preform will have a substantially uniform thickness wall and said inside depth and width of the end portion is sized to slidingly engage the outside surface of the midportion. 10. The method of claim 8 further comprising the step of inserting a graphic on a substrate into the mold on a surface therein before heating the mold.