Animal feeding apparatus and method using same

1 . An animal feeding apparatus, comprising a base integrally formed with a handle protruding thereon and away from a reservoir for one-hand holding, and the reservoir coaxially connected to an end of the base and detachably coupled with the base via a threaded connection, the reservoir configured to accommodate medium and comprising a port away from the base, wherein, the medium is driven into or out of the reservoir through the port;

the base comprising a first cavity communicating with the reservoir, and a second cavity adjacent to and communicating with the first cavity, the animal feeding apparatus further comprising:

a piston moveably positioned in the first cavity, and having a first force end away from the reservoir and extending out of the first cavity, a pushrod being provided with a first toothed rack on an outer surface thereof;

an activator movable positioned in the second cavity, and having a second force end away from the reservoir and extending out of the second cavity, a link rod being provided with a second toothed rack on an outer surface thereof; and

an linkage member integrally formed between the first cavity and the second cavity, the linkage member comprises a separator fixed inside the base and separates the first cavity from the second cavity, and a guiding gear rotatably positioned on the separator and rotatable around an axis perpendicular to moving directions of the piston and the activator, the first toothed rack and the second toothed rack both meshing with the guiding gear, and the linkage member configured to engage with the piston and the activator and guide the piston and the activator to move in two opposite directions; wherein,

the first force end and second force end are configured to alternatively get pressed to drive the piston to get the medium to move out of the reservoir, or to drive the activator to get the medium to move into the reservoir from a medium supply source.

2 . The animal feeding apparatus according to claim 1 , wherein the separator comprises a through hole for receiving the guiding gear, with a shaft fixed in the through hole and movably connected with the guiding gear, the shaft extending parallel with the axis.

3 . The animal feeding apparatus according to claim 1 , wherein, the piston comprises a sealing member adjacent to the reservoir, and the pushrod connecting the first force end with the sealing member, the pushrod engaging with the guiding gear; the sealing member is sealingly connected to the base.

4 . The animal feeding apparatus according to claim 3 , wherein, the activator comprises the link rod extending from the second force end into the second cavity, with the link rod engaging with the guiding gear.

5 . The animal feeding apparatus according to claim 1 , wherein, the medium is either in liquid or powder form.

6 . The animal feeding apparatus according to claim 1 , further comprising a tube connecting to the port.

7 . The animal feeding apparatus according to claim 1 , wherein, the reservoir is at least partially transparent to show the medium inside the reservoir.

8 . The animal feeding apparatus according to claim 1 , wherein, the first cavity is co-axial with the reservoir, the second cavity is formed on a lateral side of the first cavity and extending parallel to the first cavity.

9 . An animal feeding method using the animal feeding apparatus according to claim 1 , comprising steps of:

holding animal feeding apparatus towards the medium supply source, and pressing the second force end to drive the activator to move towards the reservoir, further to guide the piston move away from the reservoir to get the medium in the medium supply source to move into the reservoir through the port; and

relocating the animal feeding apparatus to an animal, and pressing the first force end to drive the piston to move towards the reservoir to get the medium to move out of the reservoir through the port to the animal.