Patents by Inventor Rudolph Schmidt

Rudolph Schmidt 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).

  • Method of manufacturing a fastener assembly with axially captivated washer
    Patent number: 5711711
    Abstract: A preassembled fastener assembly having a washer axially captivated on a threaded screw. The washer includes an elongated cylindrical sleeve, a radially outwardly directed flange and at least two inwardly extending detents within the sleeve to yieldably engage a shoulder on the threaded screw to hold the parts together. The detents are provided with elongated flattened inwardly extending surfaces. When assembled, the screw tip extends substantially outward of the washer sleeve and beyond the grommet. Methods of forming the detents are disclosed.
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: January 27, 1998
    Assignee: Crest Products, Inc.
    Inventor: Rudolph Schmidt, Jr.
  • Fastener assembly with axially captivated washer
    Patent number: 5662444
    Abstract: A preassembled fastener assembly having a washer axially captivated on a threaded screw. The washer includes an elongated cylindrical sleeve, a radially outwardly directed flange and at least two inwardly extending detents within the sleeve to yieldably engage a shoulder on the threaded screw to hold the parts together. The detents are provided with elongated flattened inwardly extending surfaces with tapered lead-in surfaces or radiussed portions. When assembled, the screw tip extends substantially outward of the washer sleeve and beyond the grommet. Methods of forming the detents are disclosed.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: September 2, 1997
    Assignee: Crest Products, Inc.
    Inventor: Rudolph Schmidt, Jr.
  • Fastener assembly with axially captivated washer
    Patent number: 5489177
    Abstract: A preassembled fastener assembly having a washer axially captivated on a threaded screw. The washer includes an elongated cylindrical sleeve, a radially outwardly directed flange and at least two inwardly extending detents within the sleeve to yieldably engage a shoulder on the threaded screw to hold the parts together. The detents are provided with elongated flattened inwardly extending surfaces. When assembled, the screw tip extends substantially outward of the washer sleeve and beyond the grommet. Methods of forming the detents are disclosed.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: February 6, 1996
    Assignee: Crest Products, Inc.
    Inventor: Rudolph Schmidt, Jr.
  • Method of making toothed lock washers
    Patent number: 3988796
    Abstract: A method of making toothed lock washers from sheet material wherein the lock washer bodies are blanked from the sheet material with adjacent outline configurations of the lock washers in close proximity within the sheet material, whereby the unused portions of sheet material between the outline configurations is minimized and sheet material is conserved.
    Type: Grant
    Filed: August 13, 1975
    Date of Patent: November 2, 1976
    Assignee: Triangle Tool Company
    Inventor: Rudolph Schmidt