US2001004171A1PendingUtilityA1

Linear electric motor

Priority: Feb 5, 1999Filed: Feb 19, 2001Published: Jun 21, 2001
Est. expiryFeb 5, 2019(expired)· nominal 20-yr term from priority
Inventors:Wayne Griswold
H02K 41/0356
33
PatentIndex Score
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Claims

Abstract

The present invention relates generally to linear electric motor, capable of converting electrical current into mechanical work. More specifically, this invention relates to an electric motor having a ferromagnetic vessel containing a single-pole magnetic field, and a shaft having an electromagnetic coil which moves relative to the magnetic field.

Claims

exact text as granted — not AI-modified
What is claimed and desired to be secured by United States Letters Patent is:  
     
         1 . A linear electric motor comprising: 
 (a) a vessel containing one or more magnetic elements, said magnetic elements arranged to produce a single-pole magnetic field;    (b) an electromagnetic coil which moves reciprocally within said single-pole magnetic field, wherein said reciprocal movement generates an electric current during at least a portion of said reciprocal movement;    (c) at least one electromagnet attached to said vessel;    (d) an electric circuit connected to said coil and said electromagnet which electric circuit allows at least a portion of said generated electric current from said coil to flow to said electromagnet.    
     
     
         2 . The linear electric motor of    claim 1    wherein said electric circuit further provides for the introduction of electric current from an external source to said coil.  
     
     
         3 . The linear electric motor of    claim 1    further comprising an end cap proximate to said coil.  
     
     
         4 . The linear electric motor of    claim 1    wherein said vessel contains ferromagnetic materials.  
     
     
         5 . The linear electric motor of    claim 1    wherein said unipolar magnetic field contains a region of concentrated magnetic energy.  
     
     
         6 . The linear electric motor of    claim 1    further comprising a shaft connected to said coil.  
     
     
         7 . The linear electric motor of    claim 6    wherein said shaft is connected to a crankshaft wherein the mechanical energy created by the movement of said coil is transferred to said crankshaft.  
     
     
         8 . A linear electric motor comprising: 
 (a) a vessel containing one or more magnetic elements, said magnetic elements arranged to produce a single-pole magnetic field;    (b) an electromagnetic coil having a top and a bottom which moves reciprocally within said single-pole magnetic field, wherein said reciprocal movement generates an electric current during at least a portion of said reciprocal movement;    (c) a first electromagnet attached to said vessel above said coil;    (d) a second electromagnet attached to said vessel below said coil;    (e) an electric circuit connected to said coil and said electromagnet which electric circuit allows at least a portion of said generated electric current from said coil to flow to said electromagnets.    
     
     
         9 . The linear electric motor of    claim 8    further comprising a first end cap proximate to the top of said coil and a second end cap proximate to the bottom of said coil.  
     
     
         10 . The linear electric motor of    claim 8    wherein said electric circuit further provides for the introduction of electric current from an external source to said coil.  
     
     
         11 . A linear electric motor comprising: 
 (a) at least two separate vessels each of said vessels containing one or more magnetic elements, said magnetic elements arranged to produce a unipolar magnetic field;    (b) an electromagnetic coil disposed within each of said magnetic fields, said coils moving reciprocally within each of said magnetic fields, wherein said reciprocal movement generates an electric current during at least a portion of said reciprocal movement;    (c) a shaft connected to each of said electromagnetic coils;    (d) a crankshaft connected to each of said shafts;    (e) at least one electromagnet attached to each of said vessels;    (f) an electric circuit connected to each of said coils and each of said electromagnets which electric circuit allows at least a portion of said generated electric current from said coils to flow to said electromagnets.    
     
     
         12 . The linear electric motor of    claim 8    wherein said electric circuit further provides for the introduction of electric current from an external source to said coils.

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