US4970353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective cover for exposed transformer terminals
Assignee: AG Communication Systems Corp
•
Filing: 1989-03-27
•
Granted: 1990-11-13
•
Expires: 2009-03-27
Abstract
Abstract For use with transformers, a protective cover device for protecting exposed transformer terminals from external forces which may damage the terminal to coil lead wire connection. The protective cover includes a rear flange having first and second legs extending perpendicularly from opposite minor edges of the rear flange. A generally L-shaped guard structure having a large radiused knee extends from the rear flange. An inner surface of each of the first and second legs includes mounting devices arranged to interlockingly engage the transformer, thereby positioning the guard structure to shroud and protect the transformer terminals.
Inventors
- 👤 Jeffrey F. Kotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:50
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/29
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
298 words
A protective cover for a transformer said transformer including a terminal support structure having at least one terminal mounted thereon and first and second minor sides, said protective cover comprising: a planar rear flange having a first leg extending perpendicularly from a first minor edge of said rear flange and a second leg extending perpendicularly from a second and opposite minor edge of said rear flange, said second leg oriented parallel to and in the same direction as said first leg; a guard structure having a first wall extending from a major edge of said rear flange coplanar to said rear flange, a second wall extending perpendicularly to said guard structure first wall oriented parallel to and in the same direction as said first and second legs, and a radiused knee connecting said guard structure first wall to said guard structure second wall; means for mounting said first leg to said transformer terminal support structure including first and second ramped surfaces positioned in a spaced relationship on an inner surface of said first leg, said first and second ramped surfaces on the inner surface of said first leg defining a recess therebetween, said recess of said first leg arranged to accept therein and interlockingly engage said first minor side of said transformer terminal support structure; and means for mounting said second leg to said transformer terminal support structure including first and second ramped surfaces positioned in a spaced relationship on an inner surface of said second leg, said first and second ramped surfaces on the inner surface of said second leg defining a recess therebetween, said recess of said second leg arranged to accept therein and interlockingly engage said second minor side of said transformer terminal support structure, for thereby positioning said guard structure to shroud said terminal.
Claim 2
Dependent Claim
298 words
A protective cover for a transformer said transformer including a terminal support structure having at least one terminal mounted thereon and first and second minor sides, said protective cover comprising: a planar rear flange having a first leg extending perpendicularly from a first minor edge of said rear flange and a second leg extending perpendicularly from a second and opposite minor edge of said rear flange, said second leg oriented parallel to and in the same direction as said first leg; a guard structure having a first wall extending from a major edge of said rear flange coplanar to said rear flange, a second wall extending perpendicularly to said guard structure first wall oriented parallel to and in the same direction as said first and second legs, and a radiused knee connecting said guard structure first wall to said guard structure second wall; means for mounting said first leg to said transformer terminal support structure including first and second ramped surfaces positioned in a spaced relationship on an inner surface of said first leg, said first and second ramped surfaces on the inner surface of said first leg defining a recess therebetween, said recess of said first leg arranged to accept therein and interlockingly engage said first minor side of said transformer terminal support structure; and means for mounting said second leg to said transformer terminal support structure including first and second ramped surfaces positioned in a spaced relationship on an inner surface of said second leg, said first and second ramped surfaces on the inner surface of said second leg defining a recess therebetween, said recess of said second leg arranged to accept therein and interlockingly engage said second minor side of said transformer terminal support structure, for thereby positioning said guard structure to shroud said terminal.
Claim 3
Dependent Claim
63 words
The protective cover as claimed in claim 1, wherein: said transformer is mounted to a printed circuit board, and said rear flange further includes a standoff structure extending from a second and opposite major edge of said rear flange, said standoff structure arranged to rest on said circuit board when said first and second walls are mounted to said transformer terminal support structure.
Claim 4
Dependent Claim
28 words
The protective cover as claimed in claim 1, wherein: said protective cover is formed as a unitary structure from an ABS plastic that has flexural and insulating qualities.
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) | 1993-11-12 | 1994-05-14 | 1994-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-12 | 1998-05-14 | 1998-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-12 | 2002-05-14 | 2002-11-13 | $7700.00 | Window Closed / Lapsed |