Roller Drive Means Causes Initial Piercing Patents (Class 30/420)
  • Patent number: 9629448
    Abstract: A leveraging can holder enables secure retention of a paint can, and performs multiple functions pertinent to the can. The can holder has a sufficiently elongated and rigid composition, such that a leveraging effect can be applied on the can for supporting the can and performing functions to the can that require leveraging. Different regions of the can holder pivotally engage the can, enabling the can holder to brace against the side of the can to create a rigid support for holding the can. Thus, it is possible to support the can with one hand while manipulating the contents of the can with a second hand. The can holder pivots relative to the can to form three centers of rotation along its length, like a lever. The can holder has variously sized and dimensioned flanges, holes, and extensions that also use leveraging forces to perform functions.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: April 25, 2017
    Inventor: James Siedlack
  • Patent number: 9221665
    Abstract: A manual can opener that can be operated with ease by both left-handed and right-handed users. The initial rotation of an operating handle in either direction moves readily a cutting blade toward a transport wheel to engage the lid of the can, and simultaneously rotates the transport wheel in a direction opposite to that of handle rotation so that the cutting blade is in proper condition to cut a lid from the can. Further rotation of the operating handle, in the direction of initial rotation, then forces the can against the blade to cut the lid of the can.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: December 29, 2015
    Inventor: Gregory Mark Adamczak
  • Publication number: 20020088127
    Abstract: A can opener, comprising first and second handle members, knife means, drive wheel, ratch device and the spring, wherein the said first handle members and the second handle members are pivotally connected about an axis, and a radially facing slot is formed on the first handle members, and also a apporiate protrusion in shape is also formed on the said first handle members; The cutting wheel being rigidly mounted onto the first handle member, The drive wheel partly protruding through said slot, and engages with the said first handle members and and the second handle members through the axis; the ratch device and the spring are disposed above the second handle members as well as under the drive wheel, in which one end of the spring is mounted on the first handle members, and the other end is mounted on the second handle members.
    Type: Application
    Filed: September 17, 2001
    Publication date: July 11, 2002
    Inventor: Leslie Peter Stuart Wilson
  • Patent number: 5289638
    Abstract: A can opener for opening cans of the type having a lid joined to the main body by a rim formed of inner and outer lid surfaces folded onto the upper edge of a can wall. A toothed drive wheel rotatably mounted on a housing engages the inner surface of the rim and forces the outer rim surface against a cutter wheel when a drive shaft is rotated by a turning handle. The turning handle is threaded onto the drive shaft so that rotating the handle both rotates the drive wheel and pulls it tightly against the housing which holds a rotatably mounted cutting wheel. This cuts through the outer lid surface to free the lid from the can. The cutting wheel has an outwardly flaring upper cutting edge and the drive wheel has a curved surface for contacting the inner margin of the rim. The two surfaces coact to force the upper cut surface outwardly and the lower cut surface inwardly. Consequently, as the lid is cut free, it is flared outwardly from the can wall for ease of manual removal and replacement.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: March 1, 1994
    Inventor: Jack Chase