Home | Links | Contact Us | More About Intellectual Property | Bookmark
Search patents:
Home Fuel Cells Self-contained-battery-operated-clock-fabricated-on-a-single-printed-circuit-board

 Preparation of nickel oxyhydroxide
Nickel oxyhydroxide is prepared by combining a nickel hydroxide and a hydroxide salt in an inert ...


 Temperature responsive battery tester
The battery tester of the present invention combines an electrical element, such as a zener diode, ...


 Metal platelet fuel cells production and operation methods
We claim: 1. A method for producing fuel cell separator assemblies comprising the steps of: a) ...


 Pill-dispensing and storage container
The inventor claims: 1. A dispensing-and-storage container for pills and like medication comprising:...


 Polymeric enclosures for non-aqueous active metal cells
The present invention contemplates forming the container or housing for an active metal ...


 Glass seals for sealing beta-alumina in electro-chemical cells or other energy conversion devices, glasses for use in such seals and cells or other energy conversion devices with such seals
According to the present invention, a glass for sealing to beta-alumina in an electro-chemical cell ...


 Antenna connector
I claim as my invention 1. An electrical connector especially suitable for coupling an antenna ...


 Method for sealing an electrochemical cell employing an improved reinforced cover assembly
There is disclosed herein a sealed cylindrical, resealably vented electrochemical cell for storage ...


 Composite and manufacturing method therefor
Object of the Invention Formation of anatase-type titanium dioxide films requires a high ...


 Self-locking female receptor for electrical cord
It is an objective of the present invention to provide an effective and economical female ...


 Self contained battery operated clock fabricated on a single printed circuit board

Details
Inventors: Jackle, Reinhard;
Assignee: Gebruder Staiger, Fabrik fur Feinmechanik und Elektrotechnik -- (St. Georgen, DT)
Primary Examiner: Weldon; Ulysses
Assistant Examiner:
Attorney, Agent or Firm: Mason, Kolehmainen, Rathburn & Wyss

A battery operated quartz crystal controlled alarm clock includes a single printed circuit board having a quartz crystal controlled oscillator and an oscillator controlled drive circuit mounted directly on the single printed circuit board. Additional components as for example a time display unit, an alarm signal source, a disconnect switch for the alarm signal source and one or more batteries are all arranged directly on the same circuit board with direct electrical contact being established between the components and the conductive areas plated on the circuit board. The release spring of an electro-mechanical movement is mounted on the conductor side of the circuit board and serves to establish electrical contact between two conductive areas of the circuit board to complete an electrical circuit for energizing the alarm signal source. The movement is mounted on the opposite side of the printed circuit board and communicates with the release spring through an aperture formed in the printed circuit board. All of the electrical connections are designed to substantially reduce the number of connecting members and the number of soldering operations required to produce the clock.

DETAILED DESCRIPTION What is claimed as new and desired to be secured by Letters Patent of the United States is: 1.
In an electric clock having a printed circuit board with a plurality of conductive areas plated thereon for interconnecting an electromechanical movement mounted on the printed circuit board with a group of modules and for interconnecting the modules, each module having at least one electric terminal, said group comprising a quartz controlled electric oscillator, a drive circuit controlled by the oscillator, an alarm signal source, an alarm release switch operated by the movement for closing the circuit of said alarm signal source, contacts of a manually operated alarm stop switch for breaking said circuit and a battery also having terminals, each of said modules and said battery being arranged on said printed circuit board with at least one of said terminals of each module and battery being in direct contact with selected ones of said conductive areas, with said alarm stop switch comprising a manually operated conductive member slidably contacting said printed circuit board, said conductive member being movable to a first position in direct contact with two of said conductive areas and to a second position out of contact with said areas for selectively electrically connecting and disconnecting said two conductive areas.
2.
A clock as recited in claim 1 wherein said electro-mechanical movement is provided with a terminal mounted in direct contact with one of said conductive areas.
3.
A clock as recited in claim 1 wherein said alarm release switch comprises a contact spring mounted on said printed circuit board opposite said electromechanical movement and wherein said electromechanical movement has an actuating element extending therefrom, said contact spring being adapted to contact one of said conductive areas for closing the alarm release switch, said contact spring extending over an opening defined in said printed circuit board for receiving said actuating element to permit the electromechanical movement to control the alarm release switch



Related patents
  Shunt element
An object of the invention is to provide a shunt element for an electrochemical storage cell or a group of parallel-connected storage cells, which shunt element has a ...
  Cast cold rolling roll
Having now described our invention that we claim as new and desire to secure by Letters Patent is: 1. A cast bimetallic composite roll for cold rolling, comprising in ...
  Battery terminal post protector
OF THE SHOWN EMBODIMENT Referring particularly to the drawing, there is shown a battery operated device in the form of a flashlight 10 which is to be operated ...
  Supporting member for solid oxide fuel cell
The present invention solves the above-described problems through the use of a supporting member for a solid oxide fuel cell, which member has a coefficient of thermal ...
  Nonaqueous secondary battery
The object of the present invention has been accomplished by the following nonaqueous secondary batteries. (1) A nonaqueous secondary battery comprising a positive ...
  System and method for multilayer fabrication of lithium polymer batteries and cells
Manufacturing complexity, cost, and scrap rate can be reduced, production rates increased, and better contact between the grid and the electrode material achieved by a ...
  Vapor-deposition material for the production of optical coatings of medium refractive index
What is claimed is: 1. A process for the preparation of a vapor-deposition material comprising a compound of the formula La.sub.1-x Al.sub.1+x O.sub.3, where x=0 to 0.84,...
  Secondary fuel cell
This invention relates to a secondary fuel cell and, more particularly, to a secondary fuel cell having more efficient electrode structures. In accordance with the ...
  Air heating and cooling system for aircraft batteries
The present invention is a system for maintaining an aircraft battery at its optimum operating temperature. By maintaining the temperature of the battery cell ...
  Elongate composite article
Referring to the drawing, an elongate composite article 10 has a core of particulate treating agent 11 and a tubular sheath 12 enclosing the core. The sheath is ...

0.014

Archive: All patents - Links

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