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Assignee: Dayton Reliable Tool & Mfg. Co.


Location: Dayton, OH
No. of patents: 27

NumberTitleIssue Date
5876171One-out conversion press
A conversion press (20) which is readily reconfigurable to process shells of different sizes includes an endless belt (68) having a single lane of apertures (86) formed therein for transporting shells (S) along a progression of end-forming tooling (60, 62...
03/02/1999
5860553Easy-open container end
The invention, relating to an easy-open metal container end, places a portion of the metal of the tear panel (12), in the region where a score stop otherwise would be located, under compression by forming a short coined depression or bead (40) in the tear...
01/19/1999
5806662Hubbed belt and drive for conversion press
An endless metal belt (26) for transporting shells (S) through a press (10) which converts the shells into can ends includes a plurality of shell-carrying apertures (32) and a plurality of drive holes (34). The belt is mounted about a pair of spaced-apart...
09/15/1998
5692636Easy-open container end
The invention, relating to an easy-open metal container end, places a portion of the metal of the tear panel (12), in the region where a score stop otherwise would be located, under compression by forming a short coined depression or bead (40) in the tear...
12/02/1997
5375729Easy-open container end
The invention, relating to an easy-open metal container end, places a portion of the metal of the tear panel, in the region where a score stop otherwise would be located, under compression by forming a short coined depression or bead in the tear panel, pr...
12/27/1994
5259496Belt for conversion press
A conveyor belt and drive structure are disclosed for use with a conversion press in which an upper level of an endless metallic conveyor belt, preferably of stainless steel, is positioned between upper and lower tooling in the press. The conveyor belt is...
11/09/1993
5224053Interactive control for can end systems
A control for a press and system for making can ends includes a programmable controller (PLC) which incorporates unique control software interconnecting the PLC and the press mechanisms. The PLC and its software in turn interfaces with a programmable inte...
06/29/1993
5158410Belt and drive for conversion press
A conveyor belt and drive structure are disclosed for use with a conversion press in which an upper level of an endless conveyor belt is positioned between upper and lower tooling in the press. The conveyor belt includes a plurality of transversely and lo...
10/27/1992
5119664All purpose integral rivet and method of forming same
An improved integral rivet button and resulting rivet, and a process and tooling for forming such button, utilizes successive coining steps on material surrounding the base of an initial bubble formed on a can end, causing flow of material along the wall ...
06/09/1992
5067341Transfer plate lifts for shell press
A method and apparatus are disclosed for making and transferring shells for cans within a ram press. The shells are formed in a two-step operation in which shell preforms are formed at a first station within the press and then transferred to second statio...
11/26/1991
5062287Method and apparatus for making and transferring shells for cans
A method and apparatus are disclosed for making and transferring shells for cans within a ram press. The shells are formed in a two-step operation in which shell preforms are formed at a first station within the press and then transferred to second statio...
11/05/1991
5044189Scrap guiding and chopping in a shell press
A method and apparatus are disclosed for making and transferring shells for cans within a ram press. The shells are formed in a two-step operation in which shell preforms are formed at a first station within the press and then transferred to second statio...
09/03/1991
4895012Method and apparatus for transferring relatively flat objects
An apparatus for transferring a relatively flat object from a work station along a transfer path includes an upper tooling within the work station for locating the object in a ready position by causing an upper surface of the object to adhere to the tooli...
01/23/1990
4862722Method for forming a shell for a can type container
The disclosure relates to a novel shell such as used in the manufacture of can ends, and to a method and tools for making such a shell. A non-circular blank having rounded corners is cut from thin metal. The blank is oblong in a direction transverse to th...
09/05/1989
4822232Upstacking device for a shell conversion press
An upstacking device is shown for use with generally flat metal can ends. The device is used with an endless conveyor such as a transport belt having openings therein, with each opening receiving a shell for locating the shell on the belt. The belt is int...
04/18/1989
4770022Method and apparatus for transferring relatively flat objects
An apparatus for transferring a relatively flat object from a work station along a transfer path includes an upper tooling within the work station for locating the object in a ready position by causing an upper surface of the object to adhere to the tooli...
09/13/1988
4735863Shell for can
The disclosure relates to a novel shell such as used in the manufacture of can ends, and to a method and tools for making such a shell. A non-circular blank having rounded corners is cut from thin metal. The blank is oblong in a direction transverse to th...
04/05/1988
4711611Method and apparatus for fabricating a can body
Methods and apparatus are disclosed for fabricating from ductile sheet metal a can body with integral side and bottom walls. A rounded non-circular blank is formed from the sheet metal, the blank having a greater width across the grain of the metal than a...
12/08/1987
4704887Method and apparatus for making shells for can ends
The disclosure relates to a novel shell such as used in the manufacture of can ends, and to a method and tools for making such a shell. A non-circular blank having rounded corners is cut from thin metal. The blank is oblong in a direction transverse to th...
11/10/1987
4696179Air assist means for use in transferring relatively flat objects
In a ram press for manufacturing shells for can ends, a relatively flat shell is transferred from a tooling station to a destination. The shell is supported at the first station from the upper tooling work surface, from which it is propelled in edgewise f...
09/29/1987
4640116Two-out belt system
A press for converting ends for cans and the like is provided with a conveyor extending sideways through the press to carry shells for processing into can ends along an end converting path. Upper and lower conversion tooling is located along the end conve...
02/03/1987
4637961Shell for can ends
The disclosure relates to a novel shell such as used in the manufacture of can ends, and to a method and tools for making such a shell. A non-circular blank having rounded corners is cut from thin metal. The blank is oblong in a direction transverse to th...
01/20/1987
4599884Apparatus for transferring relatively flat objects
An apparatus for transferring a relatively flat object from a first station to a second station includes a support for the object at the first station, a substantially closed housing, and a piston disposed therein for sliding movement from a normal positi...
07/15/1986
4568230Two-out belt system
A press for converting ends for cans and the like is provided with a conveyor extending sideways through the press to carry shells for processing into can ends along an end converting path. Upper and lower conversion tooling is located along the end conve...
02/04/1986
4567746Method and apparatus for making shells for cans
The disclosure relates to method and tools for making shells used in the manufacture of can ends. A first set of tools makes blank pre-forms having a substantially flat central panel and an upward-extending chuckwall about the edge of the panel. The junct...
02/04/1986
4561280Shell making method and apparatus
A method and apparatus for forming shells for use as can ends is disclosed. A sheet of thin metal is supplied to a first station within a ram press, at which a generally circular blank is separated from the sheet and partially formed into the shell. The p...
12/31/1985
4559800Preheat start-up arrangement for stamping and forming presses
The connecting arms or connection elements of a metalworking press, such as a metal forming or stamping press, are provided with flat electrical resistance heating pads attached directly to the web section of the connections for applying heat to the conne...
12/24/1985
 
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