Fuel filter with heating unit

Claim 1

A FUEL FILTER DEVICE, COMPRISING IN COMBINATION, A BODY HAVING AN INLET, AN OUTLET, AN ANNULAR EXTERIOR SEAT, AND SEPARATE PASSAGE MEANS FROM THE INLET AND OUTLET TERMINATING OPENLY ON THE EXTERIOR OF THE BODY WITHIN THE ANNULAR SEAT, A SEDIMENT BOWL HAVING AN OUTER RIM MATABLE SEALINGLY WITH THE SEAT TO DEFINE ACROSS THE SEPARATE PASSAGE MEANS A CONTINUOUS FLUID-TIGHT PASSAGEWAY FROM THE INLET TO THE OUTLET,. MEANS TO MAINTAIN SAID SEDIMENT BOWL AGAINST SAID SEAT, A FILTER ELEMENT IN LINE WITH ONE OF THE PASSAGE MEANS AND HAVING ONE END THEREOF ABUTTING THE BODY ACROSS SAID PASSAGEWAY, MEANS ENGAGING THE OPPOSITE END OF THE FILTER ELEMENT OPERABLE TO MAINTAIN SAID ELEMENT TIGHT AGAINST BODY, SAID BODY HAVING AN EXTERNAL OPENING THEREIN IN LINE WITH AND COMMUNICATING WITH ONE OF THE PASSAGE MEANS, AN ELONGATED HEATER UNIT HAVING ONE END THEREOF NARROWER THAN SAID OPENING AND RECEIVABLE THEREIN TO WITHIN THE PASSAGE MENS, MEANS DISPOSED AT THE OTHER END OF THE HEATER UNIT OPERABLE TO SEAL SAID OPENING AND TO SUPPORT THE UNIT, AND A THERMOSTAT