Patents by Inventor David A. McCaleb

David A. McCaleb 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: 6098752
    Abstract: An oil changing device and process that allows a customer to service the fluids in an internal combustion engine or automatic transmission (their application) in a completely environmentally safe manner. The device is a conveniently located oil changing center where the entire process can be accomplished safely, quickly, cleanly, and at a low cost. The oil changing center includes a sealable container (4) containing an oil filter (2), a first quick disconnect coupling (14), and a second quick disconnect coupling (16). The couplings allow access to the application's oil sump (32) and lubrication system. When a customer wishes to change their oil, they attach an evacuation oil pump (18) to the quick disconnect couplings and evacuate all the dirty oil from the oil sump and lubrication system into a dirty oil holding tank (22). They then replace the oil filter. A fill oil pump (24) is attached to the quick disconnect couplings and fills the application with an appropriate amount of oil.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: August 8, 2000
    Inventor: David A. McCaleb