Manual pump
OwnerChi-Yuan Changinventor
Life of this patent
Estimating the term…
Abstract
A manual pump includes a pumping unit and a nozzle unit. The pumping unit includes an air bag, a valve housing connected to the air bag, and a sealing ring located on and around the valve housing. The nozzle unit includes a shell connected to an inflatable object and made with an opening, a shield connected to the shell and made with an aperture, a plunger inserted in the opening and the aperture, a sealing ring located on and around the plunger, and a spring located on and around the plunger and compressed between the plunger and the shield. The aperture is in communication of air with the opening, and the opening includes a tapered portion with a wall in contact with the sealing ring of the pumping unit when the valve housing is inserted in the shell.
Claims14
A manual pump comprising:
- a pumping unit comprising an air bag, a valve housing connected to the air bag, and a sealing ring located on and around the valve housing;
- a nozzle unit comprising a shell connected to an inflatable object and made with an opening, a shield connected to the shell and made with an aperture, a plunger inserted in the opening and the aperture, a sealing ring located on and around the plunger, and a spring located on and around the plunger and compressed between the plunger and the shield, wherein the aperture is in air communication with the opening, and the opening comprises a tapered portion with a wall in contact with the sealing ring of the pumping unit when the valve housing is inserted in the shell;
- wherein the air bag comprises:
- an entrance for admitting air into the air bag;
- and
- an exit for receiving a portion of the valve housing so that the air bag is in air communication with the valve housing;
- and
- wherein the valve housing comprises:
- a connective portion extending in the exit from an end of the valve housing;
- a tubular insert extending in the shell from an opposite end of the valve housing;
- and
- a pushing tube coaxially extending in the tubular insert.
A manual pump comprising:
- a pumping unit comprising an air bag, a valve housing connected to the air bag, and a sealing ring located on and around the valve housing;
- a nozzle unit comprising a shell connected to an inflatable object and made with an opening, a shield connected to the shell and made with an aperture, a plunger inserted in the opening and the aperture, a sealing ring located on and around the plunger, and a spring located on and around the plunger and compressed between the plunger and the shield, wherein the aperture is in air communication with the opening, and the opening comprises a tapered portion with a wall in contact with the sealing ring of the pumping unit when the valve housing is inserted in the shell;
- wherein the air bag comprises:
- an entrance for admitting air into the air bag;
- an exit for receiving a portion of the valve housing so that the air bag is in air communication with the valve housing;
- and
- at least one rectilinear groove extending from an external end of the exit, and the valve housing further comprises at least one rectilinear rib inserted in the rectilinear groove.
Dependencies are inferred from the claim text.