Patents by Inventor Walter P. Pietruch
Walter P. Pietruch has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20040217116Abstract: A metal slide lid for a container which is formed from a metal blank, but in which substantially all of the raw metal edges of the blank are shielded by formed shapes. A pair of rolled rails depend from the top portion, are spaced by a sufficient distance to accept a container on which the lid is to slide, and the rolls are such that the raw metal edge is shielded within the roll. The non-rolled portions of the container, particularly the front edge which can be engaged by the fingers, is formed into a tight safety hemmed edge.Type: ApplicationFiled: April 30, 2003Publication date: November 4, 2004Applicant: J.L. Clark, Inc.Inventors: Jerry D. Offerman, Walter P. Pietruch
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Patent number: 6648631Abstract: A seamless candle can is formed in a blank and draw operation, and includes a complex bottom structure formed at the end of the drawing process. The bottom structure includes an annular base which occupies less than 30% of the area of the bottom surface, and a raised central platform for supporting a wick structure. The platform is raised at least 0.25 inch above the container bottom. A gently sloping surface joins the annular support ring to the central platform. The distance by which the platform is raised and the angle of the connecting surface are adapted to prevent overstretching of the material during the formation of the bottom, so as to prevent the formation of holes in the seamless can which would cause leaks. The central platform serves to support a wick sustainer at a location above the bottom of the can in order to reduce the possibility of flash-over.Type: GrantFiled: January 27, 2003Date of Patent: November 18, 2003Assignee: J. L. Clark, Inc.Inventors: Chet Wright, Walter P. Pietruch, Richard L. Peterson
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Publication number: 20030113681Abstract: A seamless candle can is formed in a blank and draw operation, and includes a complex bottom structure formed at the end of the drawing process. The bottom structure includes an annular base which occupies less than 30% of the area of the bottom surface, and a raised central platform for supporting a wick structure. The platform is raised at least 0.25 inch above the container bottom. A gently sloping surface joins the annular support ring to the central platform. The distance by which the platform is raised and the angle of the connecting surface are adapted to prevent overstretching of the material during the formation of the bottom, so as to prevent the formation of holes in the seamless can which would cause leaks. The central platform serves to support a wick sustainer at a location above the bottom of the can in order to reduce the possibility of flash-over.Type: ApplicationFiled: January 27, 2003Publication date: June 19, 2003Applicant: J. L. Clark, Inc.Inventors: Chet Wright, Walter P. Pietruch, Richard L. Peterson
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Patent number: 6543268Abstract: A seamless candle can is formed in a blank and draw operation, and includes a complex bottom structure formed at the end of the drawing process. The bottom structure includes an annular base which occupies less than 30% of the area of the bottom surface, and a raised central platform for supporting a wick structure. The platform is raised at least 0.25 inch above the container bottom. A gently sloping surface joins the annular support ring to the central platform. The distance by which the platform is raised and the angle of the connecting surface are adapted to prevent overstretching of the material during the formation of the bottom, so as to prevent the formation of holes in the seamless can which would cause leaks. The central platform serves to support a wick sustainer at a location above the bottom of the can in order to reduce the possibility of flash-over.Type: GrantFiled: April 2, 2002Date of Patent: April 8, 2003Assignee: J. L. Clark, Inc.Inventors: Chet Wright, Walter P. Pietruch, Richard L. Peterson
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Patent number: 6523239Abstract: A die and method of assembling a high torque capacity metal spool. The spool comprises a cylindrical barrel, a pair of flanges and a pair of flange hubs. The die includes a support member and a curling member that is adapted to move relative to the support housing. The die is adapted to be driven towards a matching die to press a spool therebetween. Each curling member includes an annular curling face which is adapted to curl and compress metal edges of the cylindrical barrel, the flanges and the flange hubs into tightened curls. The tightened curls secure the cylindrical barrel with the flanges and flange hubs. Each die further includes a plurality of nibs carried by the support housings which project outward from the curling face of the curling member after the tightened curls have been formed to swage a plurality of detents into the tightened curls of the spool. The resulting detents in the metal spool provide for increased torque transfer between the flanges, the flange hubs and the cylindrical barrel.Type: GrantFiled: July 11, 2001Date of Patent: February 25, 2003Assignee: J.L. Clark, Inc.Inventors: Richard L. Peterson, Walter P. Pietruch, Donald Leni, Ewald A. Oppmann
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Publication number: 20020166863Abstract: A seamless candle can is formed in a blank and draw operation, and includes a complex bottom structure formed at the end of the drawing process. The bottom structure includes an annular base which occupies less than 30% of the area of the bottom surface, and a raised central platform for supporting a wick structure. The platform is raised at least 0.25 inch above the container bottom. A gently sloping surface joins the annular support ring to the central platform. The distance by which the platform is raised and the angle of the connecting surface are adapted to prevent overstretching of the material during the formation of the bottom, so as to prevent the formation of holes in the seamless can which would cause leaks. The central platform serves to support a wick sustainer at a location above the bottom of the can in order to reduce the possibility of flash-over.Type: ApplicationFiled: April 2, 2002Publication date: November 14, 2002Applicant: J.L. Clark, Inc.Inventors: Chet Wright, Walter P. Pietruch, Richard L. Peterson
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Patent number: 6419184Abstract: A wooden spool held together with a novel tie rod assembly and a method of assembly the spool between a pair of dies. The novel tie rod assembly includes elongate tie rods having a bent end or otherwise deformed first end and a plurality of grooveless retaining rings. The tie rods are inserted through the end flanges and the transverse barrel of the of the spool. The retaining rings are pressed axially on the smooth second ends of the tie rods which project axially from one of the flanges. The spool can be assembled between a pair of dies. The base die includes locating recesses to receive the bent ends of the tie rods and the top die includes engaging pins for pressing the retaining rings on the opposite ends of the spool.Type: GrantFiled: June 1, 2000Date of Patent: July 16, 2002Assignee: J. L. Clark, Inc.Inventors: Ewald A. Oppmann, Richard L. Peterson, Walter P. Pietruch, Richard E. Guzzardo
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Patent number: 6398544Abstract: This invention is directed to a candle can of the type normally filled with an ignitable fuel. The candle can includes an upstanding continuous sidewall that is integrally coupled to a stamp formed candle can bottom structure at an outer periphery of the candle can bottom structure. The integral coupling of the sidewall to the bottom structure establishes a can support ring to engage a support surface. The stamp formed can bottom structure is so formed as to provide within the can an internally upwardly directed dome upon which a candlewick carrying element may be securely located within a dish shaped indentation in an apex region of the dome. In a preferred embodiment of the invention the intersection of the sidewall and the upwardly directed dome of the can bottom structure establishes an annular internal volume of fuel separated by the dome from a candlewick flame near the end of both the candlewick life and the supply of fuel.Type: GrantFiled: December 27, 2000Date of Patent: June 4, 2002Assignee: J. L. Clark, Inc.Inventors: Chet Wright, Walter P. Pietruch, Richard L. Peterson
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Publication number: 20010037551Abstract: A die and method of assembling a high torque capacity metal spool. The spool comprises a cylindrical barrel, a pair of flanges and a pair of flange hubs. The die includes a support member and a curling member that is adapted to move relative to the support housing. The die is adapted to be driven towards a matching die to press a spool therebetween. Each curling member includes an annular curling face which is adapted to curl and compress metal edges of the cylindrical barrel, the flanges and the flange hubs into tightened curls. The tightened curls secure the cylindrical barrel with the flanges and flange hubs. Each die further includes a plurality of nibs carried by the support housings which project outward from the curling face of the curling member after the tightened curls have been formed to swage a plurality of detents into the tightened curls of the spool. The resulting detents in the metal spool provide for increased torque transfer between the flanges, the flange hubs and the cylindrical barrel.Type: ApplicationFiled: July 11, 2001Publication date: November 8, 2001Applicant: J. L. Clark, Inc.Inventors: Richard L. Peterson, Walter P. Pietruch, Donald Leni, Ewald A. Oppmann
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Publication number: 20010030195Abstract: A seamless candle can is formed in a blank and draw operation, and includes a complex bottom structure formed at the end of the drawing process. The bottom structure includes an annular base which occupies less than 30% of the area of the bottom surface, and a raised central platform for supporting a wick structure. The platform is raised at least 0.25 inch above the container bottom. A gently sloping surface joins the annular support ring to the central platform. The distance by which the platform is raised and the angle of the connecting surface are adapted to prevent overstretching of the material during the formation of the bottom, so as to prevent the formation of holes in the seamless can which would cause leaks. The central platform serves to support a wick sustainer at a location above the bottom of the can in order to reduce the possibility of flash-over.Type: ApplicationFiled: December 27, 2000Publication date: October 18, 2001Inventors: Chet Wright, Walter P. Pietruch, Richard L. Peterson
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Publication number: 20010031439Abstract: This invention is directed to a candle can of the type normally filled with an ignitable fuel. The candle can includes an upstanding continuous sidewall that is integrally coupled to a stamp formed candle can bottom structure at an outer periphery of the candle can bottom structure. The integral coupling of the sidewall to the bottom structure establishes a can support ring to engage a support surface. The stamp formed can bottom structure is so formed as to provide within the can an internally upwardly directed dome upon which a candlewick carrying element may be securely located within a dish shaped indentation in an apex region of the dome. In a preferred embodiment of the invention the intersection of the sidewall and the upwardly directed dome of the can bottom structure establishes an annular internal volume of fuel separated by the dome from a candlewick flame near the end of both the candlewick life and the supply of fuel.Type: ApplicationFiled: December 27, 2000Publication date: October 18, 2001Inventors: Chet Wright, Bill Bogard, Walter P. Pietruch, Richard L. Peterson
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Patent number: 6289570Abstract: A die and method of assembling a high torque capacity metal spool. The spool comprises a cylindrical barrel, a pair of flanges and a pair of flange hubs. The die includes a support member and a curling member that is adapted to move relative to the support housing. The die is adapted to be driven towards a matching die to press a spool therebetween. Each curling member includes an annular curling face which is adapted to curl and compress metal edges of the cylindrical barrel, the flanges and the flange hubs into tightened curls. The tightened curls secure the cylindrical barrel with the flanges and flange hubs. Each die further includes a plurality of nibs carried by the support housings which project outward from the curling face of the curling member after the tightened curls have been formed to swage a plurality of detents into the tightened curls of the spool. The resulting detents in the metal spool provide for increased torque transfer between the flanges, the flange hubs and the cylindrical barrel.Type: GrantFiled: May 25, 1999Date of Patent: September 18, 2001Assignee: J. L. Clark, Inc.Inventors: Richard L. Peterson, Walter P. Pietruch, Donald Leni, Ewald A. Oppmann
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Patent number: 6267324Abstract: A high torque capacity metal spool. The spool comprises a cylindrical barrel, a pair of flanges and a pair of flange hubs. Formed metal curls formed of metal edges of the cylindrical barrel, the flanges and the flange hubs secure the cylindrical barrel to the flanges and flange hubs. The spool includes a plurality of detents in the tightened curls of the spool. The detents in the metal spool provide for increased torque transfer between the flanges, the flange hubs and the cylindrical barrel. The ability to transfer torque increases the applicability of the spool to wire winding and pulling functions. Flattening paste also covers a metal surface in the curl to increase the coefficient of friction therein and further increase the torque transmissibility capacity.Type: GrantFiled: May 25, 1999Date of Patent: July 31, 2001Assignee: J. L. Clark, Inc.Inventors: Richard L. Peterson, Ewald A. Oppmann, Donald Leni, Walter P. Pietruch
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Patent number: 6155451Abstract: A sealed metal container adapted for use with candles. The container is coated with a layer of sealing compound so that the side and bottom seams of the container do not leak flowable material. The container includes a stamp formed base which is characterized by having an internally upwardly directed dome upon which a candle wick carrying element may be securely located on an apex region of the dome. The sealing compound contains a mixture of synthetic wax with sufficient adhesive so that the compound bonds to the surface of the container. Appropriate ratios of synthetic wax and adhesive material are mixed together so that the sealing compound has sufficient flexibility. A method for forming a sealed metal container is also provided in which the sealing compound is melted, pressurized, and sprayed through a nozzle toward the interior surface of the container. The container may be preheated and rotated during spraying to ensure complete coverage.Type: GrantFiled: January 3, 2000Date of Patent: December 5, 2000Assignee: J. L. Clark, Inc.Inventors: Walter P. Pietruch, Glenn S. Ceckowski
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Patent number: 6036042Abstract: A sealed metal container adapted for use with candles. The container is coated with a layer of sealing compound so that the side and bottom seams of the container do not leak flowable material. The sealing compound contains a mixture of synthetic wax with sufficient adhesive so that the compound bonds to the surface of the container. Appropriate ratios of synthetic wax and adhesive material are mixed together so that the sealing compound has sufficient flexibility. A method for forming a sealed metal container is also provided in which the sealing compound is melted, pressurized, and sprayed through a nozzle toward the interior surface of the container. The container may be preheated and rotated during spraying to ensure complete coverage.Type: GrantFiled: August 3, 1998Date of Patent: March 14, 2000Assignee: J. L. ClarkInventors: Walter P. Pietruch, Glenn S. Ceckowski
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Patent number: 5829583Abstract: A low profile container for packaging a compact disc (CD) and a 3.5" floppy disc. The container has separable container top and bottom. The container bottom has a dish with a depth greater than the combined thickness of the CD and the floppy disc and two separate levels for receiving respectively the CD and the floppy disc. In one embodiment, the dish has a circular depression for receiving the optical disc, and four notches on the wall of the circular depression for receiving the four corners of the floppy disc.Type: GrantFiled: April 8, 1997Date of Patent: November 3, 1998Assignee: J.L. Clark, Inc.Inventors: Gordon E. VerWeyst, Walter P. Pietruch
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Patent number: D385145Type: GrantFiled: April 8, 1996Date of Patent: October 21, 1997Assignee: J.L. Clark, Inc.Inventors: Gordon E. VerWeyst, Walter P. Pietruch