Current transformer frame
Latest Power Measurement Ltd. Patents:
- Energy monitoring system using network management protocols
- Automated discovery of monitoring devices on a network
- Time coordinated energy monitoring system utilizing communications links
- Power meter having fault tolerance
- Load model generation for estimating a load value from a base load value in a system
Description
FIG. 1 is an elevation view of a first side of a current transformer frame showing the present invention.
FIG. 2 is an elevation view of the side opposite from that shown in FIG. 1.
FIG. 3 is a plan view from the top of FIG. 1.
FIG. 4 is a plan view from the bottom of FIG. 1.
FIG. 5 is an elevation view from the right side of FIG. 1.
FIG. 6 is an elevation view from the left side of FIG. 1.
FIG. 7 is an inverted perspective view from the bottom-left of FIG. 1; and,
FIG. 8 is a perspective view from the top-left of FIG. 2.
Claims
We claim the ornamental design for a current transformer frame, as shown and described.
Referenced Cited
U.S. Patent Documents
4234865 | November 18, 1980 | Shigehara |
4868532 | September 19, 1989 | Ehrenhalt et al. |
5363079 | November 8, 1994 | Zawada et al. |
D390825 | February 17, 1998 | Chen |
20030034332 | February 20, 2003 | Maulandi et al. |
Patent History
Patent number: D532747
Type: Grant
Filed: Jan 19, 2005
Date of Patent: Nov 28, 2006
Assignee: Power Measurement Ltd. (British Columbia)
Inventors: Marc A. Ricci (Victoria), Stewart J. Harding (Victoria), Colin N. Gunn (Victoria)
Primary Examiner: Stella Reid
Assistant Examiner: Derrick Holland
Attorney: Brinks Hofer Gilson & Lione
Application Number: 29/221,730
Type: Grant
Filed: Jan 19, 2005
Date of Patent: Nov 28, 2006
Assignee: Power Measurement Ltd. (British Columbia)
Inventors: Marc A. Ricci (Victoria), Stewart J. Harding (Victoria), Colin N. Gunn (Victoria)
Primary Examiner: Stella Reid
Assistant Examiner: Derrick Holland
Attorney: Brinks Hofer Gilson & Lione
Application Number: 29/221,730
Classifications
Current U.S. Class:
Transformer, Rectifier Or Casing Therefor (3) (D13/110)