US 3,955,073 AGranted

Caliper type dimensional sensing devices and associated electronic mensuration, data processing and printout system

OwnerVictor E. Carew, Victor E. Carew, Jrinventors

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Abstract

A method and system for using caliper-type dimensional sensing devices of the present invention that utilize sensors to interpret linear dimensional values of objects being measured and electric circuit control switches to transmit such values to an interfacing standard electronic printing calculator of known design for mensuration or other data processing and label printout of such values at the calculator. The electrical control circuits of each dimensional sensing device are wired in parallel with the keyboard of the printing calculator thus allowing the sensing device to function as a remote keyboard of the calculator, or alternately, of a programmable electronic calculator or computer with associated printout and/or other data processing or output devices.

Claims27

Dependent claims

A device for conveniently determining and displaying the dimensions, girth, surface areas, and volume of a regularly shaped object by mensuration of a second dimension and the application of a mathematical function to the sensed dimension and a subsequently sensed dimension comprising:

means for sensing dimension of an object and for providing an electrical signal representative thereof, said means for sensing a dimension consisting of at least one sensor bar having at least one sensor actuator disposed along its length and a jaw face normal to said sensor bar at one end, a sensing module having a slide tunnel for slidably receiving said sensor bar and a jaw face parallel to and facing said sensor bar jaw face, at least one dimension sensing switch disposed in said sensing module and operatively coupled to said sensor bar and said sensor actuator so that the action of said sensing switch is representative of the measured dimension and not more than one spring loaded decimal plunger rod extending from said sensing module jaw face normal thereto having at least one sensor actuator disposed along its length and operatively connected to at least one said dimension sensing switch disposed in said sensing module;
an electronic keyboard calculator;
conductor means for connecting said sensing and signal providing means electrically in parallel with the keyboard of said calculator;
and,
control switch means for selectively transmitting said signal along said conductor means to said calculator, whereby said dimension is registered in said calculator.

2 more elements

A device for conveniently determining and displaying the dimensions, girth, surface areas and volume of a regularly shaped object by mensuration of a sensed dimension and the application of a mathematical function to the sensed dimension and a subsequently sensed dimension comprising:

means for sensing a dimension of an object, including at least one dimension sensing switch, and for providing an electrical signal representative thereof;
mathematical function switch means for applying mathematical functions to sensed dimensions and for providing an electrical signal representative thereof;
an electronic keyboard calculator, said keyboard consisting of at least ten numeric, one decimal and several mathematical function keyboard buttons for manual operation of said calculator with each said keyboard button operatively coupled to a normally open two-position electrical contact switch comprising a non-common contact and terminal and a powered common contact and terminal that is commonly shared by all other said contact switches of said keyboard buttons of said calculator;
conductor means including means for connecting said dimensional sensing and mathematical function switch signal providing means electrically in parallel with said electrical contact switches of corresponding numeric, decimal and mathematical function keyboard buttons of said calculator;
and
signal control and control switch means that include a normally open two-position On-Off switch having its input terminal connected to the said powered common contact and terminal of said contact switches of said keyboard buttons of said calculator, for selectively receiving said signals and sequentially transmitting noncoded digital signals over selected portions of said conductor means to said non-common contacts and terminals of said contact switches of said keyboard buttons of said calculator whereby said calculator registers said dimensions, girth, surface areas and volume of said object under control of said device.

3 more elements

Dependencies are inferred from the claim text.