Patents by Inventor Richard O. Ratzel

Richard O. Ratzel 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).

  • Patent number: 5749539
    Abstract: A cushioning conversion machine of the type that converts sheet-like stock material into resilient-like dunnage product has associated therewith a stock roll holder and loading method characterized by a pair of laterally spaced apart mounts and a stock roll holder having opposite end portions removably supported on the mounts.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: May 12, 1998
    Assignee: Ranpak Corp.
    Inventors: Richard O. Ratzel, Dirk Johannes Siekmann
  • Patent number: 5735784
    Abstract: A novel loading assembly for a cushioning conversion machine that eliminates the need to manually thread the stock material through the former of the machine. The loading assembly is disposed at one end of the machine and feeds the stock material through the former to the machine's feed assembly. Hence, a cushioning conversion machine and method for converting a stock material into a cushioning product comprises a former assembly which forms the stock material into a strip of cushioning; a downstream feed assembly located at a downstream end of the former assembly which feeds the strip of cushioning passing therethrough; a loader feed assembly located at an upstream end of the former assembly, the loader feed assembly which, when engaged, feeds the stock material through the former assembly to the feed assembly; and a loader operator assembly for selectively engaging and disengaging the loading assembly.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 7, 1998
    Assignee: Ranpak Corp.
    Inventor: Richard O. Ratzel
  • Patent number: 5713825
    Abstract: A cushioning conversion machine and method for converting multiple layer of sheet-like stock material into a cushioning product, characterized by a first shaping device which shapes a first layer of the stock material into a casing with the lateral edge portions being brought into overlapping relationship one inside the other, a second shaping device which shapes at least one second layer of the stock material into a stuffing for the for the casing, a connecting assembly downstream of the first shaping device for connecting the overlapped lateral edge portions of the first layer separate from the stuffing, and an inner feed assembly downstream of the second shaping device for feeding the second layer into the interior of the casing. The machine further comprises an outer feed assembly for engaging and feeding a central portion of the first layer, the outer and connecting assemblies being cooperative to pull the first layer through the first shaping device.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 3, 1998
    Assignee: Ranpak Corp.
    Inventor: Richard O. Ratzel
  • Patent number: 5709642
    Abstract: A cushioning conversion machine for converting sheet-like stock material into a cushioning product. The machine comprises a frame; a forming assembly which forms the sheet-like stock material into a three-dimensional strip of dunnage; a stock supply assembly which supplies the sheet-like stock material to the forming assembly; and a feed assembly which feeds the stock material through the forming assembly. The feed assembly includes a pair of shafts transversely movable relative to each other, a pair of rotating members mounted on respective shafts through which the strip of dunnage passes, a biasing member which urges one shaft towards the other shaft and thus one rotating member towards the other rotating member, and an adjustment member which adjusts the tension between the rotating members.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 20, 1998
    Assignee: Ranpak Corp.
    Inventors: Richard O. Ratzel, James A. Simmons
  • Patent number: 5674172
    Abstract: A cushioning conversion machine for converting sheet-like material into a cushioning dunnage product. The machine includes a forming assembly which forms the sheet-like stock material into a three-dimensional strip of dunnage, a feed assembly which feeds the stock material to the forming assembly, and a cutting assembly which cuts the strip of dunnage into sections of a desired length. An operating assembly includes a handle member which when moved to a first position activates the feed assembly and which when moved to a second position activates the cutting assembly.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 7, 1997
    Assignee: Ranpak Corp.
    Inventors: Steven E. Armington, Richard O. Ratzel, James A. Simmons
  • Patent number: 5658229
    Abstract: A cushioning dunnage conversion machine for converting sheet-like stock material, such as paper in multiply form, into cut sections of relatively low density pad-like cushioning product, and cutting assembly therefor, is provided. The machine includes a stock supply assembly, a forming assembly, a pulling/connecting assembly and a cutting assembly, all of which are mounted on a machine frame. The machine frame includes a base plate having an upstream end and a downstream end, a first end plate extending generally perpendicular from the upstream end of the end plate and a second end plate extending generally perpendicular from the downstream end of the base plate.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: August 19, 1997
    Assignee: Ranpak Corp.
    Inventors: Steven E. Armington, Richard O. Ratzel, Walter J. Brugge, John E. Silvis, William J. Dobson
  • Patent number: 5607383
    Abstract: A modular cushioning conversion machine for converting a sheet-like stock material into a cushioning dunnage product characterized by first and second modular units. The first unit includes a housing and a forming assembly within the housing which forms the sheet-like stock material into a three-dimensional strip. The second unit includes a housing and a feed mechanism within the housing which feeds the sheet-like stock material through the forming assembly. The housings of the first and second units respectively have an outlet opening and an inlet opening positionable with respect to one another to provide a pathway for the transfer of the strip from the first unit to the second unit.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: March 4, 1997
    Assignee: Ranpak Corp.
    Inventors: Steven E. Armington, Richard O. Ratzel, Michael J. Lencoski
  • Patent number: 5593376
    Abstract: A novel dunnage-creating machine and methodology characterized by various features including, inter alia, a modular construction, easier access to interior components, and a low cost cutting assembly. The machine comprises front and rear units having separate housings. The housing of the rear unit includes an outer shell having a converging chute surrounding a shaping member over which sheet-like stock material is drawn to form the stock material into a three-dimensional shape. The front unit includes in the housing thereof a feed mechanism for drawing the stock material over the shaping member and stitching the shaped material to form a strip of dunnage product. The front unit also includes a manual cutting mechanism for cutting the strip to form cut pieces, which manual cutting mechanism includes a readily replaceable blade assembly.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: January 14, 1997
    Assignee: Ranpak Corp.
    Inventors: Steven E. Armington, Richard O. Ratzel
  • Patent number: 5571067
    Abstract: A cushioning conversion machine (10) comprises a frame (36), conversion assemblies (50, 52, 54, 56) which convert a stock material into a cushioning product, and a length measuring device (12) which determines the length of the cushioning product as it is being produced. The conversion assemblies include a rotating assembly (54) and the angular movement of this assembly directly corresponds to the length of the cushioning product. The length measuring device (12) is positioned to monitor the angular movement of the rotating conversion assembly (54) and thus the length of the cushioning product. In the preferred embodiment, the rotating conversion assembly (54) is a gear assembly.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: November 5, 1996
    Assignee: Ranpak Corp.
    Inventor: Richard O. Ratzel
  • Patent number: 5322477
    Abstract: A cushioning conversion machine for converting sheet-like stock material, such as a paper in multi-ply form, into cut sections of cushioning product is provided. The machine includes a stock supply assembly, a forming assembly, a pulling/connecting assembly and a cutting assembly, all of which are mounted on a machine frame. The machine frame includes a base plate having an upstream end and a downstream end, a first end plate extending generally perpendicular from the upstream end of the base plate and a second end plate extending generally perpendicular from the downstream end of the base plate. The frame base plate and the two frame end plates together form a "C" shaped structure. The stock supply assembly is mounted on the first frame end plate, the forming assembly is mounted on an intermediate portion of the frame base plate, the pulling/connecting assembly is mounted on an upstream side of the second end plate, and the cutting assembly is mounted on the downstream side of the second end plate.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: June 21, 1994
    Assignee: Ranpak Corp.
    Inventors: Steven E. Armington, Richard O. Ratzel, Walter J. Brugge, John E. Silvis, William J. Dobson
  • Patent number: 5211620
    Abstract: A cushioning conversion machine for converting a sheet-like stock material, which may be viewed as having two edge sections and a central section, into a cushioning product is provided. The machine includes a conversion assembly for converting the sheet-like stock material into a cushioning product and a supply assembly which supplies the sheet-like stock material to the conversion assembly. The stock material is supplied to the conversion assembly in such a manner that its edge sections must travel in a longer path than the central section thereby creating edge-tension in the edge sections of the stock material. While a certain minimum conversion-tension is necessary in the edge sections of the stock material to properly convert the stock material into a cushioning product, a certain continuous tearing-tension, greater than the minimum conversion-tension, will cause a continuous tear in the stock material.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: May 18, 1993
    Assignee: Ranpak Corp.
    Inventors: Richard O. Ratzel, James A. Simmons
  • Patent number: 5123889
    Abstract: A cushioning dunnage conversion machine for converting sheet-like stock material, such as paper in multi-ply form, into cut sections of relatively low density pad-like cushioning product, and cutting assembly therefor, is provided. The machine includes a stock supply assembly, a forming assembly, a pulling/connecting assembly and a cutting assembly, all of which are mounted on a machine frame. The machine frame includes a base plate having an upstream end and a downstream end, a first end plate extending generally perpendicular from the upstream end of the end plate and a second end plate extending generally perpendicular from the downstream end of the base plate.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: June 23, 1992
    Assignee: Ranpak Corporation
    Inventors: Steven E. Armington, Richard O. Ratzel, Walter J. Brugge, John E. Silvis, William J. Dobson
  • Patent number: 4539876
    Abstract: An improved machine tool includes a one piece, as cast base having a spindle drive motor mounting section, a wayblock mounting section, a tailstock mounting section and a tank for receiving coolant. The wayblock mounting section includes a basin having a rim and a plurality of upwardly extending projections in a central portion of the basin. Downwardly extending projections on a substantially as cast wayblock extend into the basin. A body of cast in situ material is disposed in the space between as cast surface areas on the upwardly extending base projections and as cast surface areas on the downwardly extending wayblock projections to hold the wayblock against movement relative to the base. A one piece as cast headstock has downwardly extending projections which are received in recesses formed in the wayblock. A second cast in situ body of material is disposed between surfaces on the headstock and the wayblock to hold the headstock against movement relative to the wayblock.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: September 10, 1985
    Assignee: The Warner & Swasey Company
    Inventors: Carl J. Myers, Richard O. Ratzel
  • Patent number: D370920
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: June 18, 1996
    Assignee: Ranpak Corp.
    Inventors: Steven E. Armington, Richard O. Ratzel, Michael J. Lencoski