US3825085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Price computing scale with parity check of price entry
Assignee: Reliance Electric Co
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Filing: 1973-09-20
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Granted: 1974-07-23
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Expires: 1993-09-20
Abstract
Abstract A computing weighing scale system comprising photosensitive means for setting up selected price factors in the scale''s computer and interlock means for preventing initiation or completion of the system''s operating cycle, which includes computing and printing, if part of the photosensitive means is defective or is missing or is plugged with foreign material.
Inventors
- 👤 O Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:15
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/40; G01G19/417; G01G19/413; G01G19/414; G01G19/415; G01G23/00; G01G23/18; G01G23/36; G01G23/361; G01G23/38; G01G23/42; G01G23/44; Y; Y10; Y10S; Y10S177/00; Y10S177/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
116 words
A computing weighing scale system having an operating cycle comprising, in combination, a computer for computing the value of a commodity according to its weight factor and a selected price factor, means for setting up the weight factor in the computer, photosensitive means for entering the selected price factor in the computer in patterns of binary price bits, and interlock means for adding parity bits to the price bits to prevent initiation or completion of said cycle if the photosensitive means fails to pass a parity check according to a verification code in which the sum of the price and parity bits for each number place in the price factor is always even or always odd.
Claim 2
Dependent Claim
116 words
A computing weighing scale system having an operating cycle comprising, in combination, a computer for computing the value of a commodity according to its weight factor and a selected price factor, means for setting up the weight factor in the computer, photosensitive means for entering the selected price factor in the computer in patterns of binary price bits, and interlock means for adding parity bits to the price bits to prevent initiation or completion of said cycle if the photosensitive means fails to pass a parity check according to a verification code in which the sum of the price and parity bits for each number place in the price factor is always even or always odd.
Claim 3
Dependent Claim
22 words
A computing weighing scale system according to claim 1 wherein the photosensitive means includes printing plate means for printing the commodity name.
Claim 4
Dependent Claim
199 words
A computing weighing scale system having an operating cycle comprising, in combination, a computer for compuTing the value of a commodity according to its weight factor and a selected price factor, means for setting up the weight factor in the computer, photosensitive means for entering the selected price factor in the computer according to a binary code, the photosensitive means including light source means for activating the photosensitive means, a plate defining openings and mask means for covering selected openings in a pattern of binary price bits according to the selected price factor, the plate masking the photosensitive means from the light source means according to said pattern to control the photosensitive means, the plate further defining an additional parity opening for each number place in said price factor and the mask means further covering the parity openings in a pattern of parity bits according to a verification code for each number place in the price factor in which the total number of price and parity bits in each permissible code expression is always even or always odd, and circuit means for producing an inhibit signal in response to the detection of a code expression which is not permissible.
Claim 5
Dependent Claim
199 words
A computing weighing scale system having an operating cycle comprising, in combination, a computer for compuTing the value of a commodity according to its weight factor and a selected price factor, means for setting up the weight factor in the computer, photosensitive means for entering the selected price factor in the computer according to a binary code, the photosensitive means including light source means for activating the photosensitive means, a plate defining openings and mask means for covering selected openings in a pattern of binary price bits according to the selected price factor, the plate masking the photosensitive means from the light source means according to said pattern to control the photosensitive means, the plate further defining an additional parity opening for each number place in said price factor and the mask means further covering the parity openings in a pattern of parity bits according to a verification code for each number place in the price factor in which the total number of price and parity bits in each permissible code expression is always even or always odd, and circuit means for producing an inhibit signal in response to the detection of a code expression which is not permissible.
Claim 6
Dependent Claim
155 words
A computing weighing scale system having an operating cycle comprising, in combination, a computer for computing the value of a commodity according to its weight factor and a selected price factor, means for setting up the weight factor in the computer, photosensitive means for entering the selected price factor in the computer according to a binary code as an array of price bits for each decimal place in the price factor, interlock means adding a parity bit to the array of price bits in each said decimal place to produce a permissible code expression for said decimal place in which the total number of price and parity bits in each permissible code expression is always even or always odd and including circuit means for detecting whether the code expressions are even or odd, the interlock means being for preventing initiation or completion of said cycle if one or more said code expressions is not permissible.
Claim 7
Dependent Claim
155 words
A computing weighing scale system having an operating cycle comprising, in combination, a computer for computing the value of a commodity according to its weight factor and a selected price factor, means for setting up the weight factor in the computer, photosensitive means for entering the selected price factor in the computer according to a binary code as an array of price bits for each decimal place in the price factor, interlock means adding a parity bit to the array of price bits in each said decimal place to produce a permissible code expression for said decimal place in which the total number of price and parity bits in each permissible code expression is always even or always odd and including circuit means for detecting whether the code expressions are even or odd, the interlock means being for preventing initiation or completion of said cycle if one or more said code expressions is not permissible.
Claim 8
Dependent Claim
130 words
A computing weighing scale system having an operating cycle comprising, in combination, a computer for computing the value of a commodity according to its weight factor and a selected price factor, means for setting up the weight factor in the computer, photosensitive means for entering the selected price factor in the computer according to a binary code, the photosensitive means including light source means for activating the photosensitive means, a plate defining openings and mask means for covering selected openings in a pattern of binary bits according to the selected price factor, the plate masking the photosensitive means from the light source means according to said pattern to control the photosensitive means, and interlock means for preventing initiation or completion of said cycle in the absence of the mask means.
Claim 9
Dependent Claim
130 words
A computing weighing scale system having an operating cycle comprising, in combination, a computer for computing the value of a commodity according to its weight factor and a selected price factor, means for setting up the weight factor in the computer, photosensitive means for entering the selected price factor in the computer according to a binary code, the photosensitive means including light source means for activating the photosensitive means, a plate defining openings and mask means for covering selected openings in a pattern of binary bits according to the selected price factor, the plate masking the photosensitive means from the light source means according to said pattern to control the photosensitive means, and interlock means for preventing initiation or completion of said cycle in the absence of the mask means.
Claim 10
Dependent Claim
136 words
A computing weighing scale system having an operating cycle comprising, in combination, a computer for computing the value of a commodity according to its weight factor and a selected price factor, means for setting up the weight factor in the computer, photosensitive means for entering the selected price factor in the computer according to a binary code, the photosensitive means including light source means for activating the photosensitive means, a plate defining openings and mask means defining openings for covering selected openings in a pattern of binary bits according to the selected price factor, the plate and the mask means masking the photosensitive means from the light source means according to said pattern to control the photosensitive means, and interlock means for preventing initiation or completion of said cycle in the presence of a plugged opening.
Claim 11
Dependent Claim
136 words
A computing weighing scale system having an operating cycle comprising, in combination, a computer for computing the value of a commodity according to its weight factor and a selected price factor, means for setting up the weight factor in the computer, photosensitive means for entering the selected price factor in the computer according to a binary code, the photosensitive means including light source means for activating the photosensitive means, a plate defining openings and mask means defining openings for covering selected openings in a pattern of binary bits according to the selected price factor, the plate and the mask means masking the photosensitive means from the light source means according to said pattern to control the photosensitive means, and interlock means for preventing initiation or completion of said cycle in the presence of a plugged opening.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |