General Electrodynamics Corporation

Other

Charles R Brazell

Dick E Davis

Jerome E Johnston

James W Manley

A rolled sheet dispenser assembly for dispensing a cutting a selected length of a rolled sheet includes a housing that has a plurality of mounting holes integrated for mounting to a horizontal support surface. The housing has a dispensing slot extending into an interior of the housing to facilitate a rolled sheet positioned in the housing to be drawn outwardly through the dispensing slot. A pair of holders is each of the holders is coupled to the housing to engage a respective end of the rolled sheet. A base is removably attachable to the housing and a cutter is slidably coupled to the base. The cutter is slidable laterally along the base to cut the length of rolled sheet that has been drawn outwardly from the housing.

Rolled sheet dispenser assembly

A self-contained stand-alone weighing system (10) comprises at least one weight supporting surface (24) for bearing the weight of an object, at least one transducer (60) coupled to the weight supporting surface (24) for producing a signal indicative of the weight, and a processor (66) for receiving the signal and producing a resultant weight signal. The resultant weight signal is then represented in a form perceptible to humans by a weight indicator (38). The self-contained weighing system (10) also comprises a rechargeable battery (36) for supplying electrical energy, and a housing (12,14) for enclosing the weighing system (10) to form a single unit.

Self-contained weighing system and method

A platform weighing system (10) suitable for making accurate weight measurements of heavy objects, such as aircraft, is disclosed. Hardware and software combine to produce the accurate results. Analog hardware (14) includes hydraulic load cells (80a-80d), temperature sensing (91), filtering (90), and voltage-to-frequency conversion (104). Digital hardware (12) receives an oscillation signal output from the voltage-to-frequency conversion (104) and obtains load counts by monitoring the oscillation signal for consistent predetermined durations. The predetermined duration is chosen in software (226) to be immune to particularly pervasive noise signals. A microprocessor (16) converts load counts into a weight code which is output to a display (46). This conversion includes compensation for auto ranging (320), load cell excitation variance (282), temperature compensation (284), null offset variance (286), and zero drifting (304). In addition, nonlinearities in load cell output are compensated by linearly interpolating (288-296) between two of a plurality of calibration points that characterize the load cells (80a-80d ). Such compensations are performed primarily in software (200).

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Arlington, TX, United States of America

Charles R Brazell