In-line check valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 10, 1997
Grant Date -
N/A
app pub date -
Apr 12, 1995
filing date -
Apr 12, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A windshield washer system has a nozzle mounted on a vehicle for issuing wash fluid to a windshield and a check valve for a fluid circuit from a supply of wash fluid to the nozzle. The nozzle has a fluid feed tube integrally formed therewith with annular walls defining a washer fluid flow path and a diameter of at least D. The feed tube has an external surface adapted to receive and retain a flexible hose from a supply of wash fluid. A spring shoulder receives a coil compression spring having upstream and downstream ends with the downstream end bearing on the spring shoulder. A valve element bears on the upstream end of the spring element, and a tubular insert having an inner end and an external diameter at least D and sufficient to form an elongated wash fluid seal with the annular walls defining a washer fluid flow path, and complementary-shaped valve seat formed on the inner end.
First Claim
Other Claims data not available