US4082141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ballast vibration isolation system with thermal path
Assignee: Cooper Industries LLC
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Filing: 1976-02-18
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Granted: 1978-04-04
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Expires: 1996-02-18
Abstract
Abstract A ballast can be mechanically and thermally isolated from the mounting plate which acts as a heat sink by securing a pair of L-shaped channels to the bottom of the ballast with the depending leg of each channel being disposed in intimate sliding engagement with the flat surface of a respective C-shaped channel member which is secured to the mounting plate. Vibration damping washers are disposed between the L-shaped channel member and the C-shaped channel member to prevent vibrations from being transmitted from the ballast to the base while still permitting heat dissipation through the superimposed sliding surfaces of the channels.
Inventors
- 👤 Michael L. Perretta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:08
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/33; H01F27/06; H01F27/08; H01F27/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
A ballast vibration isolation system having a thermal path comprising ballast means, mounting plate means, first heat transfer means secured to said ballast and having at least one flat surface extending outwardly at right angles thereto, second heat transfer means secured to said mounting plate means and having at least one flat surface extending outwardly therefrom at right angles, means securing said first and second heat transfer means together with said flat surfaces being disposed in intimate sliding contact with each other to provide a thermal path between said ballast means and said mounting plate means and vibration isolation means disposed between said ballast means and said mounting plate means.
Claim 2
Dependent Claim
110 words
A ballast vibration isolation system having a thermal path comprising ballast means, mounting plate means, first heat transfer means secured to said ballast and having at least one flat surface extending outwardly at right angles thereto, second heat transfer means secured to said mounting plate means and having at least one flat surface extending outwardly therefrom at right angles, means securing said first and second heat transfer means together with said flat surfaces being disposed in intimate sliding contact with each other to provide a thermal path between said ballast means and said mounting plate means and vibration isolation means disposed between said ballast means and said mounting plate means.
Claim 3
Dependent Claim
61 words
A system as set forth in claim 1 wherein said first heat transfer means is comprised of a pair of L-shaped metallic sections, said second heat transfer means is comprised of a pair of parallel C-shaped channel members and said vibration isolation means is comprised of a plurality of elastomeric washers disposed between said L-shaped sections and said C-shaped channel sections.
Claim 4
Dependent Claim
14 words
The system as set forth in claim 2 wherein said sections are aluminum extrusions.
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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) | 1981-04-03 | 1981-10-03 | 1982-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-03 | 1985-10-03 | 1986-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-03 | 1989-10-03 | 1990-04-04 | $7700.00 | Window Closed / Lapsed |