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US3872936A
Expired / Lapsed
US
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Weighing apparatus including pulse counter means having a relatively small capacity
Assignee: Mettler Toledo GmbH Germany
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Filing: 1974-03-15
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Granted: 1975-03-25
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Expires: 1994-03-15
Abstract
Abstract Weighing apparatus of the type including means for generating load compensation pulses the lengths of which correspond with the extent to which a load carrier member is displaced from its initial no-load position upon the application thereto of a load to be measured. High frequency counting pulses are counted by counter means during periods in which the compensation current pulses are applied to the load compensation coil of the apparatus, whereby the number of counting pulses is a function of the magnitude of the load being measured. The apparatus is characterized by the use of counter means having a relatively small capacity with respect to the measuring range of the apparatus, in combination with computer means which control the operation of the counter means to provide the appropriate digital measurement result.
Inventors
- 👤 Arthur Baumann
- 👤 Werner Langenegger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:19
CPC Classifications
G; G01; G01G; G01G7/00; G01G7/02; G01G7/04; G01G7/045; G01G23/00; G01G23/18; G01G23/36; G01G23/37; G01G23/3707; Y; Y10; Y10S; Y10S177/00; Y10S177/03
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
191 words
In an electrical weighing apparatus including a load carrier member, and means (14) responsive to the amount of load on said load carrier member for producing in a given period of time a plurality of pulses the number of which is a function of the load applied to said load carrier, the improvement which comprises a. pulse counter means (22) connected with said pulse producing means, said counter means having a counting capacity that is low relative to the measuring range of the weighing apparatus; b. actual measurement display means (38) for displaying the actual value of the load being measured; and c. computer means (24) connected between said counter means and said display means for controlling the operation of said counter means to totalize a plurality of separate subtotals of said pulse counter means and to transmit to said display means the totalized actual load measurement, said computer means including 1. count storage means (26); and 2. means (27, 32) operable during said given period of time for periodically transferring the subtotal counts of said counter means to said count storage means and for resetting said counter means to zero.
Claim 2
Dependent Claim
191 words
In an electrical weighing apparatus including a load carrier member, and means (14) responsive to the amount of load on said load carrier member for producing in a given period of time a plurality of pulses the number of which is a function of the load applied to said load carrier, the improvement which comprises a. pulse counter means (22) connected with said pulse producing means, said counter means having a counting capacity that is low relative to the measuring range of the weighing apparatus; b. actual measurement display means (38) for displaying the actual value of the load being measured; and c. computer means (24) connected between said counter means and said display means for controlling the operation of said counter means to totalize a plurality of separate subtotals of said pulse counter means and to transmit to said display means the totalized actual load measurement, said computer means including 1. count storage means (26); and 2. means (27, 32) operable during said given period of time for periodically transferring the subtotal counts of said counter means to said count storage means and for resetting said counter means to zero.
Claim 3
Dependent Claim
33 words
means (27, 32) operable during said given period of time for periodically transferring the subtotal counts of said counter means to said count storage means and for resetting said counter means to zero.
Claim 4
Dependent Claim
33 words
means (27, 32) operable during said given period of time for periodically transferring the subtotal counts of said counter means to said count storage means and for resetting said counter means to zero.
Claim 5
Dependent Claim
25 words
means including a shift register (60) and a data input multiplexer (59) for introducing the instantaneous count of said counter into said storage register means;
Claim 6
Dependent Claim
25 words
means including a shift register (60) and a data input multiplexer (59) for introducing the instantaneous count of said counter into said storage register means;
Claim 7
Dependent Claim
132 words
In an electrical weighing apparatus including a load carrier member, and means (14) responsive to the amount of load on said load carrier member for producing in a given period of time a plurality of pulses the number of which is a function of the load applied to said load carrier, the improvement which comprises a. pulse counter means (22) connected with said pulse producing means, said counter means having a low capacity relative to the measuring range of the weighing apparatus; b. actual measurement display means (38) for displaying the actual value of the load being measured; and c. computer means (24) connected between said counter means and said actual measurement display means for controlling the operation of said counter means to afford the actual load measurement, said computer means including
Claim 8
Dependent Claim
132 words
In an electrical weighing apparatus including a load carrier member, and means (14) responsive to the amount of load on said load carrier member for producing in a given period of time a plurality of pulses the number of which is a function of the load applied to said load carrier, the improvement which comprises a. pulse counter means (22) connected with said pulse producing means, said counter means having a low capacity relative to the measuring range of the weighing apparatus; b. actual measurement display means (38) for displaying the actual value of the load being measured; and c. computer means (24) connected between said counter means and said actual measurement display means for controlling the operation of said counter means to afford the actual load measurement, said computer means including
Claim 9
Dependent Claim
22 words
Read-Only Memory store means (27) having input and output terminals, said output terminal being connected with said count computing and storage means;
Claim 10
Dependent Claim
22 words
Read-Only Memory store means (27) having input and output terminals, said output terminal being connected with said count computing and storage means;
Claim 11
Dependent Claim
34 words
means for introducing control signals to said Read-Only Memory store means, said introducing means including instruction multiplexer means (33), sequence control means (50) and a Read-Only Memory counter (28) connected with said input terminal;
Claim 12
Dependent Claim
34 words
means for introducing control signals to said Read-Only Memory store means, said introducing means including instruction multiplexer means (33), sequence control means (50) and a Read-Only Memory counter (28) connected with said input terminal;
Claim 13
Dependent Claim
38 words
instruction decoder means (32) having an input terminal also connected with the output terminal of said Read-Only Memory, said instruction decoder means having an output terminal connected with said counter means and with said date input multiplexer; and
Claim 14
Dependent Claim
38 words
instruction decoder means (32) having an input terminal also connected with the output terminal of said Read-Only Memory, said instruction decoder means having an output terminal connected with said counter means and with said date input multiplexer; and
Claim 15
Dependent Claim
66 words
means (23) for supplying a timing control signal to said instruction multiplexer to cause said Read-Only Memory store to operate said counter and said display means via said instruction decoder means to transmit the counter signal to said count storage means, to reset the counter to zero, and to cause the transmission of the count in said count store means to said actual measurement display means.
Claim 16
Dependent Claim
66 words
means (23) for supplying a timing control signal to said instruction multiplexer to cause said Read-Only Memory store to operate said counter and said display means via said instruction decoder means to transmit the counter signal to said count storage means, to reset the counter to zero, and to cause the transmission of the count in said count store means to said actual measurement display means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |