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Priority claimed from US10/961,213external-prioritypatent/US20050106050A1/en
Application filed by Care Rehab & Orthopedic Products IncfiledCriticalCare Rehab & Orthopedic Products Inc
Publication of TW200616600ApublicationCriticalpatent/TW200616600A/en
A hand pump includes a pumping system having a primary pressure chamber and a valve control assembly. The valve assembly includes a vent passageway in communication between the primary pressure chamber and ambient and a valve seal assembly having a seal and a seat. A biasing mechanism biases the seal against the seat to obstruct fluid or gas passage in the vent passageway to ambient. A traction device may be fluidly coupled to the hand pump system.
TW094135504A2004-10-122005-10-12Hand pump with pressure release mechanism and system of use
TW200616600A
(en)