Internal Cam Patents (Class 72/452.3)
  • Patent number: 9296090
    Abstract: A clamping jaw for clamping workpieces attached on a clamping fixture, the height of the clamping jaw being about 3.5 millimeters, or less, without sacrificing a reliable and durable connection between the clamping element and the workpiece clamped, wherein the clamping jaw is provided with two contact surfaces and clamping surfaces facing towards the workpiece and which are in active contact with the workpiece in the clamped condition and extend at right angles to one another, one or more recesses in the clamping surface, each provided with a triangular shaped inner contour, one tip of each recess faces away from the clamping surface, one clamping element is disposed in each recess, the outer contour of the clamping element corresponding to an inner contour of the recess, and an end flank of the clamping element facing towards the workpiece having clamping pin therein, and the clamping pins project beyond the clamping surface of the clamping jaw.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: March 29, 2016
    Assignee: OML srl
    Inventor: Walter Bronzino
  • Patent number: 8959971
    Abstract: A corner cam assembly for use with a forming die and including a generally cylindrical inner cam component, an outer cam component, a base, and a retainer unit. Contoured contact surfaces on the inner and outer cam components enable the components to slide past one another during transitions between retracted and extended positions. Some features of the corner cam assembly include helical contact surfaces, guide features that control movement of the cam components, removable work steels, standardized cam components, and being able to form negative and other tight angles, multiple corners and edges, to name but a few.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: February 24, 2015
    Assignee: Helical Cam, LLC
    Inventor: Jeffrey C. Krozek
  • Publication number: 20140260097
    Abstract: The present disclosure is directed to embodiments of automated crimping systems, methods of crimping prosthetic valves, and methods of using automated crimping systems to crimp prosthetic valves. In some embodiments, an automated crimping system includes a crimper controller, a rotary actuator, an outer crimper housing, and a crimper mechanism mounted within the outer crimper housing. In some embodiments, an automated method of crimping a prosthetic valve includes inserting a prosthetic valve into an automated crimping system, activating the automated crimping system, and removing the crimped prosthetic valve from the automated crimping system. In some embodiments, a method of crimping a prosthetic valve comprises partially crimping the prosthetic valve at a first speed to a partially crimped configuration and further crimping the prosthetic valve at a second speed.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Edwards Lifesciences Corporation
    Inventors: Neal Avery, Hao Shang, Julie A. Benton, Bin Tian
  • Patent number: 8065902
    Abstract: A lower platen of the hemming apparatus is provided with a hem punch capable of being pressed against an inner periphery bent portion of a workpiece having a frame and a cam follower. The cam follower is disposed on the lower platen to come outside the frame of the workpiece. The cam follower and the hem punch are connected through a connecting member. An upper platen of the hemming apparatus is provided with a driver cam engageable against the cam follower. The driver cam moves the cam follower, whereby the hem punch is pressed against the inner periphery bent portion.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: November 29, 2011
    Assignee: Hirotec Corporation
    Inventors: Masaru Kono, Satoshi Takemoto