Home | Links | Contact Us | More About Intellectual Property | Bookmark
Search patents:
Home Audio Signal Processing Process-transmitter-with-inner-conductive-cover-for-EMI-shielding

 Method of graphically displaying the results of repeated perimetric examination of visual fields
I claim: 1. A method of making records of the results of perimetric examinations of the visual ...


 Quadriphonic sound pick-up and reproduction devices
What I claim is: 1. A sound pick-up device for multiphonic broadcasting and recording, comprising a ...


 Electronic telephone
To achieve the foregoing objects, and in accordance with the purposes of the invention as embodied ...


 Dereverberation system
The principles of this invention may be employed by the use of a single processor or by the use of ...


 Device for forming an image by means of ultrasound
What is claimed is: 1. In a device for forming an image of an object by use of ultrasound energy, ...


 Composite speaker system having a directional adjustable transducer
The present invention is a novel and unique composite speaker system which relates to existing ...


 Vehicle steering system
The invention relates to a vehicle steering system having a manual steering device, particularly a ...


 Speaker mounting system
The present invention provides a simplified speaker mounting system, that is inexpensive to ...


 Stereo headphones with plug, receptacle and securing plates
We claim: 1. A headphone comprising: A. an ear cup having a plurality of acoustic transducers ...


 Speaker holder
The present invention has been accomplished to provide a speaker holder which eliminates the ...


 Process transmitter with inner conductive cover for EMI shielding

Details
Inventors: Bodin, Joel J.; Huisenga, Garrie D.; Johnson, Theodore L.; Rauth, William C.;
Assignee: Rosemount Inc. (Eden Prairie, MN)
Primary Examiner: Picard; Leo P.
Assistant Examiner: Ledynh; Bot
Attorney, Agent or Firm: Westman, Champlin & Kelly

A transmitter comprises a housing, an electronics assembly, an inner cover, and an outer cover. The electronics assembly includes an actuatable switch and fits within an open-ended cavity in the housing. The inner cover is positionable over the open end to cover the electronics assembly and has a deflectable button portion which is alignable with the actuatable switch and accessable from the open end while the electronics assembly is energized. The inner cover is electrically conductive and has a sleeve which frictionally mates with electrically conductive walls of the housing to shield the electronics assembly from electromagnetic interference (EMI). The inner cover is preferably an insulating molded plastic part with a thin metallic coating.

DETAILED DESCRIPTION In the present invention, a transmitter comprises a housing, an electronics assembly, an inner cover, and an outer cover.
The electronics assembly includes an actuatable switch and fits within an open-ended cavity in the housing, while the inner cover is positionable over the open end to cover the electronics assembly and has a deflectable button portion which is alignable with the actuatable switch and accessable from the open end while the electronics assembly is energized.
According to the invention, the inner cover is electrically conductive and has a sleeve which frictionally mates with electrically conductive walls of the housing to shield the electronics assembly from EMI.
The outer cover screws onto the housing over the inner cover.
The inner cover is preferably composed of insulating plastic with a thin metallic coating.


Related patents
  Integrated circuit with memory comprising a fraud-prevention device
An object of the invention therefore is an integrated circuit comprising an electrically erasable programmable memory, the cells of which comprise a transistor with ...
  Binary logic level electrical detector namely to prevent the detection of secret codes contained in a memory card
The invention therefore concerns a binary logic level electrical detector of the biased type, comprising means to receive a signal with a given logic level and to ...
  Method for the programming of the memory cells of a memory and a circuit to implement this method
Consequently, an object of the invention is a method for programming the memory cells of a memory, said cells comprising floating-gate transistors programmable by ...
  MOS fuse with oxide breakdown and application thereof to memory cards
An object of the invention is a fuse with a Metal/Oxide/Semiconductor structure that does not have the drawbacks of standard fuses in respect of the breakdown power ...
  Audio system operable in directional and non-directional modes
It is therefore an object of the present invention to solve the aforementioned technical problems by providing an audio system of a simple structure with which each ...
  Corner-based image matching
One aspect of the invention is a method of matching a test image to a reference image. A reference image is obtained and its edge boundaries are determined. From the ...
  Automated setup verification system
OF THE PREFERRED EMBODIMENT Referring now to the drawing wherein like parts and elements are designated by like reference characters throughout the several figures, and ...
  Temperature compensation circuit in a pickup tube device
Accordingly, it is a general object of the present invention to provide a novel and useful temperature compensation circuit in a pickup tube device, in which the above ...
  Directional microphone
I claim: 1. In a dynamic microphone, the combination comprising, a body closed at one end by an annular magnetic pole-piece, an inner magnetic pole-piece supported ...
  Electroacoustic device
FIG. 1 shows, in cross section, a telephone receiver comprising permanent magnet 1, pole piece 2, support 3, induction coil 4, ring armature 5 which is in an air gap in ...

0.024

Archive: All patents - Links

Copyright (c)2006 Eipa-patents.org - All rights reserved