Patent US3867822A successfully refreshed from Google Patents.
US3867822A
Expired / Lapsed
US
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Locking means for electric meters
Assignee: Olson Manufacturing Co
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Filing: 1973-08-02
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Granted: 1975-02-25
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Expires: 1993-08-02
Abstract
Abstract To prevent unauthorized access to an electric watt-hour meter, a yoke is provided to enclose the lugs at the ends of the usual Usection split ring retaining band used to fix the receptacle for the meter works such as glass bowl enclosure therefor, to the meter base. A bolt-type lock goes through four aligned holes in the lugs and in the yoke and has transversely extensible locking members standing out beyond the fourth hole to prevent withdrawal of the bolt until unlocked. An enlarged end or head on the bolt prevents movement of the bolt in one direction, and a hood on the yoke prevents access to the other end and the locking members.
Inventors
- 👤 Lynn H Morse
- 👤 Jr Anker J Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:33
CPC Classifications
G; G01; G01R; G01R11/00; G01R11/02; G01R11/04; F; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/509; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1441; Y10T24/1443; Y10T292/00; Y10T292/20; Y10T292/205; Y10T292/212; Y10T292/214; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/554; Y10T70/5562; Y10T70/5566; Y10T70/5611; Y10T70/5854; Y10T70/5867
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
57 words
Locking means for electric meters having in combination a base, a receptacle holding the meter works, a U-section split ring uniting the base and the receptacle, means on the ends of the split ring to contact the ring, unbreakable means shielding the contracting means from access, and key-operated means locking the shielding means to the split ring.
Claim 2
Dependent Claim
57 words
Locking means for electric meters having in combination a base, a receptacle holding the meter works, a U-section split ring uniting the base and the receptacle, means on the ends of the split ring to contact the ring, unbreakable means shielding the contracting means from access, and key-operated means locking the shielding means to the split ring.
Claim 3
Dependent Claim
18 words
The combination according to claim 1 in which the key-operated means also locks the split ring from opening.
Claim 4
Dependent Claim
20 words
The combination according to claim 1 in which the key-operated locking means is substantially wholly enclosed in the shielding means.
Claim 5
Dependent Claim
43 words
The combination according to claim 1 in which there are lugs on the ends of the split ring, screw means drawing the lugs toward each other, and the shielding means is a yoke enclosing the lugs and the screw means preventing access thereto.
Claim 6
Dependent Claim
18 words
The combination according to claim 4 in which the key-operated locking means locks the yoke to the lugs.
Claim 7
Dependent Claim
45 words
The combination according to claim 4 in which U-section portions of the yoke receive parts of the split ring adjacent the lugs, and there is a shoulder within each U-section portion formed by an integral cross-bar spaced inward from the end of such U-section portion.
References Cited (Backward Citations)
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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) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |