Scales, in particular shop scales

• US 4,034,818 A
• Filed: 10/16/1975
• Issued: 07/12/1977
• Est. Priority Date: 10/24/1974
• Status: Expired due to Term

• Current Assignee: Vaaka-Nyholm
• Original Assignee: Vaaka-Nyholm
• Inventors: Matilainen, Waltteri
• Primary Examiner(s): Hartary, Joseph W.
• Application Number:
  US05/623,034
• Time in Patent Office: 635 Days
• Field of Search: 177/25, 177/1, 177/DIG. 1, 177/DIG. 3, 235/151.33
• US Class Current: 177/25.15
• CPC Class Codes: G01G 19/4144 for controlling weight of goods in commercial establishments, e.g. supermarket, P.O.S. systems
• CPC Class Codes: G01G 23/34 combined with price indicators

Abstract

A scale has a display unit for digitally displaying weights, price per unit weight, and price data in sequential fashion and preferably using common digit display portions of the display unit for each of these items of data. A weight computing unit computes weight at automatically repeated periods. A manual entry price unit having a keyboard is provided for the entry of price per unit weight data. A calculator unit is supplied with data from the weight computer unit and manual entry price unit. With this information, the calculator unit computes price data. The manual entry price unit and weight computing unit have a commmon input to the calculator unit. This arrangement together with the provision of a selector unit connected to the weight computing unit and the manual entry price unit allows the passage of price per unit weight and price data sequentially after the weight data has been unchanged during at least two repeated periods. The display unit is supplied with the sequential data from the calculator unit and displays weight, price per unit weight and price sequentially.

Claims

1. In a scale with display means for digitally displaying weight, price per unit weight, and price data and having weight computing means for computing weight at automatically repeated periods, manual entry price means for entry of price per unit weight data, and calculator means supplied with the data from the weight computer means and manual entry price means, said calculator means computing price data, wherein the improvement comprises said manual entry price means and weight computing means having a common input to the calculator means, said display means being supplied with data from the calculator means and displaying weight, price per unit weight, and price sequentially, and selector means connected to the weight computing means and manual entry price means for allowing the passage of price per unit weight and price data sequentially after weight data has been unchanged during at least two of said repeated periods.

2. The scale of claim 1 in which a change of weight comparison means for determining change of weight during repeated periods controls the selector means.

3. The scale according to claim 1, characterized in that the manual entry price means has key means for:

a. clearing the calculator means through a clearing unit,

b. directing the selector means to the state in which it inhibits the passage of the weight data to the calculator means, and

c. entering the first digit of the price per unit weight data in the calculator means.

4. The scale according to claim 1, characterized in that the price per unit weight data passes digit by digit through the calculator means directly to the display means.

5. The scale according to claim 1, characterized by a clearing key means controlling a clearing unit and by means of which in any situation whatsover the calculator means may be cleared and the selector means directed to the state in which it passes the weight data to the calculator means and further to the display means.

6. The scale according to claim 1, characterized in that the display means has a predetermined number of individual digit display means and at least some of the digits of price per unit weight and price data are displayed by the same individual digit display means.