Metering pump device for a vehicle heater

Details Metering pump device for a vehicle heater Metering pump device for a vehicle heater

2008-01-29

2008-01-29

Stashick, Anthony D. (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C417S525000, C417S545000

Reexamination Certificate

active

10757157

ABSTRACT:
A metering pump device for a vehicle heater includes an inlet chamber, an outlet chamber, a first valve arrangement between the inlet chamber and the outlet chamber, which permits a fluid exchange substantially only from the inlet chamber to the outlet chamber, a displacement piston element, which in a first piston position minimizes the volume of the inlet chamber and in a second piston position minimizes the volume of the outlet chamber.

REFERENCES:
patent: 3809507 (1974-05-01), Baglai
patent: 4349130 (1982-09-01), Bair
patent: 4560327 (1985-12-01), Bez et al.
patent: 6152710 (2000-11-01), Oh et al.
patent: 6186118 (2001-02-01), Spakowski
patent: 6193477 (2001-02-01), Falk
patent: 6796777 (2004-09-01), Falk et al.
patent: 42 05 290 (1992-02-01), None
patent: 101 03 224 (2001-01-01), None
patent: 2 180 301 (1987-03-01), None
Examination Report dated Apr. 9, 2003 from German Patent Office for German Priority Application 103 01 093.9.

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