Magnetic pick-up tool
View Patent ↗A magnetic pick-up tool is described having a first, small diameter, high field strength permanent magnet pellet, permanently secured within a holder presenting a pole face at a distal tip of a probe extending from a handle, and at least a second, removable, small diameter, high field strength permanent magnet pellet stored, seated adhering in a receptacle located in the proximal end of the handle having a bottom composed of a high magnetically susceptible material.
1. A magnetic pick-up tool comprising in combination,
a first, small, high field strength, permanent magnet pellet, permanently secured within a holder presenting a pick-up pole face at a distal tip of a probe extending from a handle of the tool, and
at least a second, removable, small, high field strength, permanent magnet pellet stored seated magnetically adhering in a receptacle within the handle of the tool having a bottom composed of a magnetically susceptible material,
wherein the second magnetic pellet is removed by a user from the receptacle and placed coaxially adhering to the pick-up pole face of the first magnetic pellet for increasing the attractive magnetic field strength of the tool.
2. The magnetic pick-up tool of claim 1 wherein each receptacle receiving and seating a removable, small, high field strength, permanent magnet pellet has sidewalls flaring outward from its bottom allowing each removable magnet pellet to be tipped for removal from its particular receptacle.
3. The magnetic pick-up tool of claim 1 wherein the ratio of receptacle depth R d , and length M 1 of each removable magnet received and seated in a receptacle ranges between 1:5 and 3:5.
4. The magnetic pick-up tool of claim 1 wherein the receptacle receiving and seating the second removable, small, high field strength, permanent magnet pellet coaxially penetrates into the proximal end of the handle with the second, removable magnet pellet seated within the receptacle with a planer pole face magnetically adhering to the magnetically susceptible bottom of the receptacle.
5. The magnetic pick-up tool of either claim 1 , 2 , 3 , or 4 wherein the probe is extensible.
6. The magnetic pick-up tool of either claim 1 , 2 , 3 , or 4 wherein the probe is flexible.
7. The magnetic pick-up tool of either claim 1 , 2 , 3 , or 4 wherein the probe is bendable.
8. The magnetic pick-up tool of claim 5 wherein from its proximal end, the second, removable small diameter, high field strength, permanent magnet pellet stored, seated in the receptacle, the handle, the probe, and the first, small diameter, high field strength, permanent magnet pellet permanently secured within the holder at the distal tip of the probe are cylindrical and coaxial.
9. The magnetic pick-up tool of claim 8 wherein each removable magnet pellet has a diameter at least equal to the diameter of the first, small diameter, high field strength, permanent magnet pellet.
10. The magnetic pick-up tool of claim 8 wherein each removable magnet pellet has a diameter at most equal to the diameter of the first, small diameter, high field strength, permanent magnet pellet.
11. A method for increasing the attractive field strength of a magnetic pick-up tool having a handle and a pick-up head at a distal end of an extensible/flexible probe presenting a pole face of a first high strength permanent magnet, the steps comprising,
a) making a handle receptacle in a proximal end of the tool handle;
b) securing a magnetically susceptible material at the bottom of the handle receptacle;
c) storing a second high strength permanent magnet pellet seated within the handle receptacle;
d) removing the second high strength permanent magnet pellet seated from the handle receptacle, and seating it with a pole face of opposite polarity magnetically adhering to the pole face of the of the first high strength permanent magnet presented by the pick-up head.