Apparatus and method for filling a motor vehicle cooling system with coolant

  • US 6,152,193 A
  • Filed: 02/02/2000
  • Issued: 11/28/2000
  • Est. Priority Date: 02/12/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A service cap for attaching an apparatus for adding coolant to a cooling system to a filler neck of a radiator, said service cap comprising:

  • a body having a passage there through and having external threads;

    a collar threaded onto the external threads of the body and having a first aperture;

    a resilient sleeve abutting the collar and having a second aperture; and

    a compression tube having a head at a first end which abuts the sleeve, the compression tube extending through the first aperture and the second aperture and being secured in the passage of the body;

    wherein movement of the collar on the thread of the body draws the compression tube through the collar and compresses the sleeve against the collar resulting in outward expansion of the sleeve.

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