National Can Corporation

Other

Panduit Corporation

Richard A Openchowski

Surya K Misra

Casimir M Guzay

Craig S Espevik

Wayne D Niemeyer

Joseph A Bronec

William Hessel

James H Caputo

A strap fastener buckle for fastening opposing ends of an object encircling strap includes first and second bridge portions partially defining first and second tubular portions and a deformable retainer extending from the buckle intermediate first and second bridge portions. One end of the strap is initially secured to the buckle. The free end of the strap is then secured to the buckle by passing the free end through first and second tubular portions, folding the free end over second bridge portion, severing the free end at a predetermined point short of the second bridge portion, and securing the severed end between first and second bridge portions by deforming the retainer to a position overlying the severed end of the strap.

Buckle fastener and method of application

A method of forming a drawn and ironed aluminum container is disclosed herein. The aluminum stock material is initially provided with a thin layer of a particular lubricant applied to one or both surfaces thereof. The lubricant is unemulsified (i) peanut oil and/or (ii) certain oleic acid esters of aliphatic polyhydric alcohols. The method contemplates applying the thin layer of said lubricant to an aluminum stock, cutting a disc and forming a drawn and ironed container utilizing said lubricated disc without additional lubricant being applied to the tooling.

Method of forming seamless drawn and ironed containers of aluminum stock

A precoated stock material for use in forming a drawn and ironed container and a method of forming such container is disclosed herein. The stock material initially has a layer of lubricant applied to one or both surfaces of the metal base with the lubricant consisting essentially of a fatty acid ester of a mono or polyhydric alcohol and having a distribution of less than 3 mg./in..sup.2. The method contemplates applying the layer of lubricant to a metal stock, such as aluminum, black plate or tinplate, cutting a disc from the metal stock, and transforming the disc into a drawn and ironed container without additional lubricant being applied to the tooling.

Method of forming seamless container

A method and apparatus for forming a seamless container having a sidewall and an integral end wall with opening means in the integral end wall is disclosed herein. The method contemplates forming at least one substantially closed area of reduced thickness in the end wall to produce a fracturable web that defines an opening means during the conversion of a flat disc to a finished container. In one form, the method contemplates initially forming a shallow cup and then forming the opening means in the end wall of the shallow cup before the cup is converted into a drawn and ironed container. In another form, the opening means is formed while the container end wall is being reformed into its final configuration and in a further version, the end opening means is formed in the end wall after completion of the drawing and ironing process. The finished container includes a reformed end wall that is integral with a circular sidewall of a container and has a fracturable web surrounding a protuberance. The invention also contemplates apparatus for carrying out the above method and results in a container which may have a flat end panel attached to the open end of the drawn and ironed container to produce a beverage package.

Growing community of inventors

Woodridge, IL, United States of America

Richard A Openchowski