| 摘要 |
This invention is a manually driven pump used to transfer a liquefied gas such as nitrous oxide or carbon dioxide between containers. The pump is designed to minimize friction, can be directly attached to a mother bottle, and has an automatic piston return on the pumping stroke, all of which optimize operator use for the particular gas which is being pumped. The pump is small, portable, and requires no additional power source in its operation, making it ideal for field use. The pump can be used to fill nursing bottles from a mother bottle or to raise the pressure of a nursing bottle to a desired operating level. |
