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4217507 |
Linear motor
A linear motor construction in which a plurality of parallelpiped shaped permanent magnets are retained within an easily molded spool having an axial bore formed through the axis thereof. A coil...
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4215297 |
Electromagnetic percussion appliance
An electromagnetic hammer has a coil coacting with an axially reciprocable armature including a ferromagnetic core traversed by an elongate nonmagnetic ram which carries at one end a spring-loaded...
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4198743 |
Method for forming a magnetic core for a linear compressor
A method for forming a magnetic core for the magnetic circuit of a linear-motor compressor suitable for use in a refrigerant system. The compressor includes a conical armature which reciprocates in...
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4191893 |
Natural turbulence electrical power generator
An energy conversion apparatus is disclosed in which a stator, fixed relative to a watertight housing, is coupled to a rotor by a helical spring which suspends the rotor from the housing. Natural...
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4179630 |
Linear compressor
A moving-iron, linear-motor compressor suitable for use in a refrigerant system, wherein a conical armature reciprocates in a complementary air-gap under the influence of an electromagnetic circuit...
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4140932 |
Pulse generator
An axially polarized bar magnet is slidably disposed in a non-conductive, non-magnetic tube on which two serially connected oppositely wound induction coils are disposed, the coils being spaced...
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4129187 |
Electro-mechanical vibrator
A mechanical vibrator or tapper is shown in which a high intensity permanent magnet armature moves within the field of a coil of wire wound about the magnet. The magnet is guided for reciprocal...
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4128161 |
Vibratory device
A vibratory feeder system includes a track having a linear, circular or helical configuration upon which articles that are to be transported are positioned. The vibratory feeder system further...
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4127835 |
Electromechanical force motor
An electromechanical force motor including an elongate magnetic casing which coaxially enhouses a magnetic armature. An annular electromagnetic coil surrounds the armature and is axially positioned...
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4101792 |
Mechanically-powered electric generator for instant-photographic camera and other apparatus
A compact electric generator that is powered by a tensioned spring and adapted to serve as an integral and permanent source of electric energy for a photographic camera or other apparatus. The...
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4053955 |
Drain cleaning tool
An hydraulic plunger for cleaning a clogged drain composed of a casing with a piston movable therein and being open at one end. A fitting is provided on the open end that fits against the drain...
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4037122 |
Linear actuator
A linear actuator comprises a toothed magnetic motor bar and a motor element having a pair of E-cores on opposite sides of the motor bar. Rollers attached directly to the E-cores ride on the motor...
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4023056 |
Collision detecting system
A collision detecting system is mounted on the front part of an automobile to detect collisions thereof and comprises a permanent magnet, a generating coil and a plunger as its principal component...
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4010390 |
Electromagnetic actuator comprising a plunger core
An electromagnetic actuator having a plunger core and a stationary ferromagnetic core, both surrounded by an electrical winding, is provided with means for adjusting the axial position of the...
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3984708 |
Electromagnetic tactile stimulator
An improved electromagnetic tactile stimulator is disclosed for preferable use in a matrix array. A plurality of such stimulators are confronted to impart vibratory impulses of varying intensity to...
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3984707 |
Spring return linear signal generator
A linear signal generator, that is one operating axially as opposed to a rotating generator comprises a housing, an annular electric coil mounted about the longitudinal axis of the housing, a...
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3976923 |
Pattern generating apparatus
Integrated circuit mask patterns are laser machined by mounting substrates on a support that is periodically stepped in a y direction after each scan by a laser writing beam in an x direction....
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3971969 |
Electrically operated stapling device
An electrically operated stapling device is disclosed. Staples are driven into the article to be stapled by a simple driver blade which is powered by a current actuated solenoid. In the preferred...
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3968387 |
Linear magnetic generator
An axially movable magnetic member is disposed in coaxial relationship to pulse core windings. Responsive to alternating current or pulsed direct current applied to the pulse core windings to the...
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3963948 |
Magnetic pulse generator
A tubular soft iron member is slidably positioned within a magnet-coil assembly and adapted to respond to toggle action travel between two magnetically stable states by producing rapid changes in...
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3943390 |
Deceleration detecting device
In a deceleration detecting device, magnetic induction electromotive force is utilized as a signal for expanding an air bag, and magnitude of this magnetic induction electromotive force is...
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3942051 |
Shock actuated electrical pulse generator
An electrical pulse generator comprising a closed magnetic circuit made up of permeable iron and permanent magnet material having a cup-shaped portion, a central rod shaped portion extending...
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3937992 |
Pulse keyboard switch
The switch includes an annular permanent magnet, a plate of soft magnetic material at one side of the magnet, a stationary electric coil at the opposite side of the magnet, and an unrestrained...
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3936242 |
Linear motor cooling fan
A linearly reciprocating fan for cooling a linear motor which drives the fan is disclosed as including a fan blade attached to the linear motor and means for guiding the air flow caused by the...
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3934162 |
Miniaturized nuclear battery
The present invention relates to a miniaturized nuclear battery, consisting of several in series connected cells, wherein each cell contains a support which acts as positive pole and which supports...
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3931554 |
Reciprocating motor-compressor system
A reciprocating motor compressor assembly includes a pair of opposed pistons or diaphragms actuated by a reciprocating armature. The armature is fabricated from laminations of ferromagnetic...
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3925842 |
Power eraser
An electrical eraser having a linearly reciprocating drive for oscillating an elongated erasing element along its longitudinal axis. This motion of the element provides fast erasing action with...
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3924165 |
Control circuit for sequential energization of plural loads from an AC power source
Control circuitry for solenoid type power units and the like, such as employed as pump means in oceanographic monitoring apparatus and the like. In an illustrative embodiment two power units...
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3894817 |
Oscillatory armature piston pump
A tubular hollow piston, including a valve, is of smaller diameter at its pressure end than its suction end and is mounted at both ends in mounting bushes. An armature is attached by web portions...
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3860839 |
ELECTRODYNAMIC TRAVELLING FIELD LINEAR MOTOR OF THE SYNCHRONOUS TYPE
An electrodynamic travelling field linear motor of synchronous construction has a primary and a secondary arranged with respect to each other for generating a relative thrust movement therebetween...
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3859547 |
MULTI-POSITION SOLENOID WITH LATCHING OR NONLATCHING CAPABILITY
A multi-position latching or nonlatching solenoid comprises a magnetic core with opposed salient stator poles having windings. A ferro-magnetic armature is mounted to reciprocate between the...
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3832776 |
ELECTRONICALLY POWERED KNIFE
A single blade electronically powered knife has a cylindrical case in which is located a solenoid having a centrally mounted longitudinally oscillating rod. The inner end of the rod is slidably...
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3772540 |
ELECTROMECHANICAL LATCHING ACTUATOR
An electromechanical latching actuator for producing linear or rotary motion. The device includes one or more sets of permanent magnets and electric coils which annul and flux switch a magnetic...
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3766455 |
ELECTROMAGNETICALLY OPERATED STAPLER
The operating winding of an electromagnetically operated stapler is in the period of time during the working stroke connected with a capacitor the discharge current of which energizes said winding...
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3755699 |
ELECTRO-MECHANICAL TRANSDUCER
A moving coil transducer comprises a bobbin of magnetically soft ferro-magnetic material having a cylindrical portion wound with an actuating winding between end cheeks, each of the end cheeks...
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3755700 |
ELECTROMAGNETIC DRIVE
An electromagnetic drive for the needle of a needle printer comprising a pair of cylindrical magnet pole shoes disposed within a cylindrical magnet coil and connected with the needle.
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3754154 |
SEALED PUMP AND DRIVE THEREFOR
A completely sealed magnetically driven pump havng a piston-armature driven by electrical windings. Unique electrical driving circuits are provided for the pump embodying feed-back windings...
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3740171 |
ELECTROMAGNETIC PUMP OR MOTOR DEVICE
An electromagnetic plunger-cylinder device including two alternately energized solenoid coils wound about the cylinder to reciprocate the plunger therewithin, the inner end of one coil being...
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3740594 |
PERMANENT-ELECTROMAGNETIC RECIPROCATING DEVICE
The device, configured to have a small width with respect to its length in the direction of armature movement, comprises a long tubular, radially magnetized permanent magnet coaxially surrounding a...
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3736448 |
DISPLACEMENT TRANSDUCER
An electromechanical transducer for developing electrical signal measurements of mechanical vibrations. A magnet is guided for lengthwise movement within a coil whose length is substantially equal...
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3691437 |
CONTROL MEANS FOR ELECTRIC TOOLS
A magnetostrictive transducer is vibrated at an ultra-sonic frequency by a driver winding supplied with energizing current from a generator, the output level of which is changed through a signal...
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3681629 |
ELECTRICAL RECTILINEAR-MOTION DEVICES
A rectilinear-motion device comprising an armature shaft acted on lengthwise by a moving magnetic field produced by a field device disposed around the armature shaft. A tubular member is rigidly...
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3670223 |
METHOD AND APPARATUS FOR PRODUCING VIBRATIONS OR IMPULSES
This device for producing vibrations, oscillations or impulses to be converted if necessary into unidirectional impulses or into linear movements comprises a reversible magnetic yoke and core...
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3643117 |
LINEAR RECIPROCATING ELECTRIC MOTORS
A linear reciprocating electric motor of the type wherein a moving member is arranged to reciprocate within an opening in a stationary member which constitutes the electromagnetic circuit thereof,...
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3641761 |
WATCH TRANSDUCER
Disclosed is a crystal controlled watch having an improved transducer for converting the electrical impulses from a crystal oscillator and divider into unidirectional stepwise rotary motion...
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3605080 |
ELECTRODYNAMIC SONAR PROJECTOR
A compact, high-power, electromechanical transducer having a reduced iner for efficient, low frequency transmission of sonar energy is provided, and includes a pair of coaxially disposed,...
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3549916 |
SHOCK ABSORBING MAGNET
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3536941 |
LINEAR SYNCHRONOUS ELECTRIC MOTOR WITH RECIPROCATING ARMATURE
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3518463 |
LOW INERTIA HIGH THRUST VIBRATOR
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3517360 |
ELECTROMAGNETIC FORCE MOTOR HAVING LINEAR OUTPUT CHARACTERISTICS
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