Patents by Inventor Carl Palmgren

Carl Palmgren 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).

  • Slide hammer quick attachment apparatus
    Patent number: 6374660
    Abstract: A quick-release apparatus for use with slide hammers includes a shaft adapter portion which is threaded onto the slide hammer shaft and at least one tool adapter portion which is threaded onto the hook or tool to be used. The shaft adapter portion and tool adapter portion are mechanically engaged and disengaged by pulling down on the locking collar on the shaft adapter portion and turning the tool adapter portion ninety degrees, then sliding the tool adapter portion off the shaft adapter. The same or different tool can then be installed by aligning the shaft adapter lugs with the slots on the tool adapter and pushing the tool adapter on, then turning the tool adapter ninety degrees until the positioning lugs on the locking collar engage.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: April 23, 2002
    Inventor: Carl Palmgren