Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
96 words
A method for grinding a work immersed in a magnetic fluid containing abrasive grains filled in a container, said magnetic fluid being given a magnetic field from the outside of the container with magnets, which comprises immersing a floating pad in said magnetic fluid at a position adjacent to the work, said floating pad being given a buoyant force by said magnetic field whereby the abrasive grains existing between the floating pad and the work are pushed onto the work and a mutual motion is given between the work and the magnetic fluid containing abrasive grains.
Claim 2
Independent Claim
96 words
A method for grinding a work immersed in a magnetic fluid containing abrasive grains filled in a container, said magnetic fluid being given a magnetic field from the outside of the container with magnets, which comprises immersing a floating pad in said magnetic fluid at a position adjacent to the work, said floating pad being given a buoyant force by said magnetic field whereby the abrasive grains existing between the floating pad and the work are pushed onto the work and a mutual motion is given between the work and the magnetic fluid containing abrasive grains.
Claim 3
Dependent Claim
33 words
A method according to claim 1, wherein the mutual motion between the work and the magnetic fluid containing abrasive grains is given in the form of reciprocation, revolution or vibration of the work.
Claim 4
Dependent Claim
39 words
A method according to claim 1, wherein the mutual motion between the work and the magnetic fluid containing abrasive grains is given in the form of reciprocation, revolution or vibration of the magnetic fluid by actuating the magnetic field.
Claim 5
Dependent Claim
21 words
A method according to claim 1, wherein the floating pad is provided with numerous grooves or cavities on the surface thereof.
Claim 6
Dependent Claim
21 words
A method according to claim 1, wherein the floating pad is provided with numerous penetrated holes, the abrasive grains passing through.
Claim 7
Dependent Claim
33 words
A method according to claim 1, wherein a driving means is used to drive the work in order to give a mutual motion between the work and the magnetic fluid containing abrasive grains.
Claim 8
Dependent Claim
19 words
A method according to claim 6, wherein the work is placed between the driving means and the floating pad.
Claim 9
Dependent Claim
29 words
A method according to claim 1, wherein the magnet comprises a group of magnets placed side by side, in which adjoined poles of them have different polarity each other.
Claim 10
Independent Claim
120 words
An apparatus for grinding a work with a magnetic fluid containing abrasive grains filled in a container by immersing the work in said magnetic fluid, which comprises; (1) magnet means being placed outside the container and under the bottom floor to give a magnetic field to said magnetic fluid, (2) a means for driving the work in said magnetic fluid, (3) a floating pad placed in said magnetic fluid, so that the abrasive grains existing between the floating pad and the work are pushed onto the work, and (4) means to vertically position said container relative to said means for driving the work, said positioning means including means to maintain a constant load between the floating pad and the word.
Claim 11
Independent Claim
120 words
An apparatus for grinding a work with a magnetic fluid containing abrasive grains filled in a container by immersing the work in said magnetic fluid, which comprises; (1) magnet means being placed outside the container and under the bottom floor to give a magnetic field to said magnetic fluid, (2) a means for driving the work in said magnetic fluid, (3) a floating pad placed in said magnetic fluid, so that the abrasive grains existing between the floating pad and the work are pushed onto the work, and (4) means to vertically position said container relative to said means for driving the work, said positioning means including means to maintain a constant load between the floating pad and the word.