Suction device
AssigneeChi Mei Communication Systems, Inc.
InventorHUNG-CHEN WU
Life of this patent
Estimating the term…
Abstract
A suction device (10) is described. The suction device (10) includes a cylinder (11) having a semi-closed end (113), a suction tip (13) connected to the semi-closed end (113), a piston (12), an elastic member (16) and an electromagnetic member (17). The piston (12) is slidably received in the cylinder (11), the piston (12) and the semi-closed end (113) encloses a working chamber (122). One end of the elastic member (16) is connected to the cylinder (11), the other end is connected to the piston (12). The electromagnetic member (17) causes the piston (12) to slide back and forth in the cylinder (11) to vary the volume of the working chamber (122) by adjusting the magnetic field of the electromagnetic member (17).
Claims8
A suction device, comprising:
- a cylinder having a semi-closed end;
- a suction tip connecting to an open portion of the semi-closed end;
- a piston slidably received in the cylinder, the piston and the semi-closed end enclosing a working chamber;
- an elastic member, one end of the elastic member being connected to the cylinder, the other end of the elastic member being connected to the piston;
- and
- an electromagnetic member for causing the piston to slide back and forth in the cylinder to vary the volume of the working chamber by adjusting the magnetic field of the electromagnetic member.
A method for gripping and moving an article, comprising:
- providing a cylinder device defining a working chamber and having a suction opening placing the working chamber in communication with the ambient environment;
- positioning a slidable magnetic piston in the cylinder device to define the volume of the working chamber;
- using an electromagnet to slide the magnetic piston in a first direction, whereby the volume of the working chamber can be increased and in a second direction, whereby the volume of the working chamber can be decreased;
- blocking the suction opening with an article to be moved, thereby preventing fluid communication between the working chamber and the ambient environment;
- such that, when the volume of the working chamber is increased, the pressure within the working chamber decreases and the article becomes fixed to the cylinder device.
Dependencies are inferred from the claim text.