Resources Contact Us Home

Image Number 6 for United States Patent #7692346.

A compact enclosed type vibrator capable of ensuring a large amount of vibration has a casing (5), a coil (10) and a magnetic circuit unit (11) provided in the casing, and a suspension (3) supporting the magnetic circuit unit. The magnetic circuit unit has an extent in the radial direction and has an outer peripheral surface set adjacent to the inner peripheral surface of the casing across an annular gap. At least one of the casing and the magnetic circuit unit is provided with a vent passage (13a and 13b) that additionally communicates between a first space (17) and a second space (18) formed at the upper and lower sides of the magnetic circuit unit.

  Recently Added Patents
Train car for proppant containers
Parallel processing computer systems with reduced power consumption and methods for providing the same
Electronic device
Pressing mold for optical lenses and method for manufacturing glass optical lenses
Method for transmitting an electronic short message to multiple receivers
Surface emitting laser device, surface emitting laser array, optical scanning device, and image forming apparatus
Vehicle motion control device
  Randomly Featured Patents
Moving platform slide stainer with heating elements
Cork screw provided with a cap cutter which can be inserted in the handle
1-transistor type DRAM cell, a DRAM device and manufacturing method therefore, driving circuit for DRAM, and driving method therefor
Method of forming pattern and projection aligner for carrying out the same
Method for electron gun alignment in electron microscopes
Saddle riding type vehicle
Switch key
Printer with reverse sheet feed path to sheet inlet
Knife sharpening cutting board
Method of arranging the staggered shape bond pads layers for effectively reducing the size of a die