US3579217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting and indicating malfunction of a tableting machine
Assignee: Thomas Machinery Corp
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Filing: 1968-06-10
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Granted: 1971-05-18
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Expires: 1988-06-10
Abstract
Abstract Method and means for monitoring a multistation tableting machine with respect to the forces applied by tablet-forming punch means to tablets successively formed in and ejected from said machine which comprises continuously measuring the electric power requirement of said machine with respect to predetermined overload and underload norms of operation.
Inventors
- 👤 Thomas J Casey
- 👤 George F Loeffler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:38
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/28; B30B15/281; B30B11/00; B30B11/005; H; H02; H02H; H02H7/00; H02H7/08; H02H7/085; H02P; H02P29/00; H02P29/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
68 words
The combination with an electric motor driven tableting machine and an electric power supply therefor of wattmeter means electrically coupled with said power supply for determining the instantaneous load on the machine''s motor, means for indicating said load, and means for signalling overload and underload respectively of power supply in response to deviation from predetermined limiting norms of the machine''s power requirements indicative of machine and/or tableting malfunction.
Claim 2
Dependent Claim
68 words
The combination with an electric motor driven tableting machine and an electric power supply therefor of wattmeter means electrically coupled with said power supply for determining the instantaneous load on the machine''s motor, means for indicating said load, and means for signalling overload and underload respectively of power supply in response to deviation from predetermined limiting norms of the machine''s power requirements indicative of machine and/or tableting malfunction.
Claim 3
Dependent Claim
13 words
The device of claim 1 wherein the signalling means comprises an audible signal.
Claim 4
Dependent Claim
13 words
The device of claim 1 wherein the signalling means comprises a visual signal.
Claim 5
Dependent Claim
14 words
The device of claim 1 wherein the signalling means comprises a power cutoff relay.
Claim 6
Independent Claim
100 words
A method for monitoring an electrically driven multistation tableting machine with respect to the forces applied by tablet-forming punch means to tablets successively formed in and ejected from said machine which comprises measuring the electric wattage requirements of said machine under normal operating conditions to predetermine the normal load on the machine and the overload and underload norms of operation thereof indicative of machine and/or tableting malfunction, continuously measuring the instantaneous wattage draw of said machine to determine the load thereon with respect to said predetermined overload and underload norms of operation, and indicating and signalling overload and underload respectively.
Claim 7
Independent Claim
100 words
A method for monitoring an electrically driven multistation tableting machine with respect to the forces applied by tablet-forming punch means to tablets successively formed in and ejected from said machine which comprises measuring the electric wattage requirements of said machine under normal operating conditions to predetermine the normal load on the machine and the overload and underload norms of operation thereof indicative of machine and/or tableting malfunction, continuously measuring the instantaneous wattage draw of said machine to determine the load thereon with respect to said predetermined overload and underload norms of operation, and indicating and signalling overload and underload respectively.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |