US3741324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weighing scale with digital display
Assignee: Hobart Manfacturing Co
•
Filing: 1971-05-03
•
Granted: 1973-06-26
•
Expires: 1991-05-03
Abstract
Abstract A weighing scale having a vertical housing with front and back walls includes electronic means for displaying visually the price per unit weight and the total price of goods placed on the scale platform. The housing also includes an optical chart, having human recognizable and machine recognizable indicia representing the weight of the goods placed on the scale platform, which moves through a distance proportional to the weight of the goods. Optical paths are provided to display visually the weight of the goods on ground glass plates mounted to be visible through the front and back walls, and a third optical path directs the machine recognizable indicia onto photodetectors to provide an electrical representation of the weight of the goods. An electronic computer within the scale computes the total value of the goods and displays this information visually, along with price per unit weight information provided by a manually operated keyboard, on electronic readout tubes.
Inventors
- 👤 E Boshinski
- 👤 W Clark
- 👤 R Riehl
- 👤 W Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:19
CPC Classifications
G; G01; G01G; G01G23/00; G01G23/18; G01G23/32; G01G19/00; G01G19/40; G01G19/413; G01G19/414; G01G19/4144; Y; Y10; Y10S; Y10S177/00; Y10S177/03
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
122 words
A weighing scale including a scale platform adapted to receive goods for weighing; means for providing electrical output signals representing the weight of the goods placed on said platform; means for providing electrical signals representing the price per unit weight of the goods including a keyboard on which a scale operator may enter manually this information, means retaining this information until a new price per unit weight entry is made, time delay means permitting the entry of the price per unit weight information sequentially within a predetermined time delay period, electronic means for displaying visually the price per unit weight, electronic means for computing the total price of the goods, and electronic meanS for displaying visually the total price of the goods.
Claim 2
Dependent Claim
122 words
A weighing scale including a scale platform adapted to receive goods for weighing; means for providing electrical output signals representing the weight of the goods placed on said platform; means for providing electrical signals representing the price per unit weight of the goods including a keyboard on which a scale operator may enter manually this information, means retaining this information until a new price per unit weight entry is made, time delay means permitting the entry of the price per unit weight information sequentially within a predetermined time delay period, electronic means for displaying visually the price per unit weight, electronic means for computing the total price of the goods, and electronic meanS for displaying visually the total price of the goods.
Claim 3
Dependent Claim
20 words
The scale of claim 1 further including means to display optically the weight of the goods placed on said platform.
Claim 4
Dependent Claim
114 words
The scale of claim 1 further including means responsive to said electrical output signals representing weight for producing a first output signal during motion of said scale platform, means responsive to said electrical output signals representing weight for producing a second output signal when the weight on said scale platform is either less than a first predetermined weight or in excess of a second predetermined weight, means responsive to the output of said electronic means for computing total price for producing a third output signal when the total price computed is in excess of a predetermined value, and means responsive to said first, second and third output signals for preventing display of total price.
Claim 5
Dependent Claim
52 words
The scale of claim 1 further including means responsive to said electrical signals representing the weight of the goods to enter a zero value into said means for providing electrical signals representing the price per unit weight of the goods when the weight on said scale platform falls below a predetermined value.
Claim 6
Dependent Claim
114 words
A weighing scale including a scale platform adapted to receive goods for weighing, means for providing electrical output signals representing the weight of the goods placed on said platform, means for providing electrical signals representing the price per unit weight of the goods, means responsive to said electrical output signals representing weight for resetting said means for providing electrical signals representing the price per unit weight to a zero value when the weight on said scale platform falls below a predetermined weight, electronic means for displaying visually the price per unit weight, electronic means for computing the total price of the goods, and electronic means for displaying visually the total price of the goods.
Claim 7
Dependent Claim
114 words
A weighing scale including a scale platform adapted to receive goods for weighing, means for providing electrical output signals representing the weight of the goods placed on said platform, means for providing electrical signals representing the price per unit weight of the goods, means responsive to said electrical output signals representing weight for resetting said means for providing electrical signals representing the price per unit weight to a zero value when the weight on said scale platform falls below a predetermined weight, electronic means for displaying visually the price per unit weight, electronic means for computing the total price of the goods, and electronic means for displaying visually the total price of the goods.
References Cited (Backward Citations)
GB476095A
Cited
GB481482A
Cited
GB695635A
Cited
FR1226808A
Cited
US3163247A
Cited
US3130802A
Cited
US3276526A
Cited
US3439760A
Cited
US3289777A
Cited
US3447617A
Cited
US3459272A
Cited
US3576099A
Cited
US3608655A
Cited
US3653015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |