US3858149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame supported grid resistors
Assignee: Mosebach Manufacturing Co
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Filing: 1974-06-21
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Granted: 1974-12-31
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Expires: 1994-06-21
Abstract
Abstract A grid resistor has a plurality of identical resistor support frames each defining a plane. The frames are stacked in alignment to form a hexahedron structure with levels of frames. Plates on the outer face of the hexahedron structure support the frames tightly against each other to maintain the hexahedron structure. Within each frame there is at least one ribbon of resistance material which is fanfolded providing a plurality of equally spaced, parallel, uniform linear lengths connected by U-shaped folds. The U-shaped folds have studs at the outer tips of the folds which engage holes in the resistor support frames. Bus bars selectively couple the resistors in each level to a pair of output terminals.
Inventors
- 👤 V Kirilloff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:33
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/01
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
A resistor having a pair of terminals comprising: 1. a plurality of resistor support frames each defining a plane and each having the same shape, the frames are stacked in alignment to form a hexahedron structure; 2. means engaging the hexahedron structure and holding the support frames tightly against each other to maintain the hexahedron structure; 3. resistor means positioned within the plane defined by each resistor support frame; and 4. means electrically coupling all of the resistor means between and to the terminals whereby a resistor is presented between the pair of terminals.
Claim 2
Dependent Claim
94 words
A resistor having a pair of terminals comprising: 1. a plurality of resistor support frames each defining a plane and each having the same shape, the frames are stacked in alignment to form a hexahedron structure; 2. means engaging the hexahedron structure and holding the support frames tightly against each other to maintain the hexahedron structure; 3. resistor means positioned within the plane defined by each resistor support frame; and 4. means electrically coupling all of the resistor means between and to the terminals whereby a resistor is presented between the pair of terminals.
Claim 3
Dependent Claim
19 words
means engaging the hexahedron structure and holding the support frames tightly against each other to maintain the hexahedron structure;
Claim 4
Dependent Claim
19 words
means engaging the hexahedron structure and holding the support frames tightly against each other to maintain the hexahedron structure;
Claim 5
Dependent Claim
64 words
A resistor as recited in claim 1 wherein the means engaging the hexahedron structure includes a plate along each surface formed by the hexahedron, at least two of the plates have flanges engaging the outer support frames of the hexahedron structure, the plates are connected to form an outer hexahedron which conforms to the shape of the hexahedron structure formed by the support frames.
Claim 6
Dependent Claim
73 words
A resistor as recited in claim 2 wherein the resistor means includes a pair of resistors each formed by conductive ribbon material which is fanfolded providing a plurality of equally spaced, parallel uniform linear lengths connected by U-shaped folds, the U-shaped folds have studs at the outer tips of the folds which engage holes in the resistor support frames, the pair of resistors are separated by a center strip of electrical insulating material.
Claim 7
Dependent Claim
13 words
resistor means positioned within the plane defined by each resistor support frame; and
Claim 8
Dependent Claim
13 words
resistor means positioned within the plane defined by each resistor support frame; and
Claim 9
Dependent Claim
23 words
means electrically coupling all of the resistor means between and to the terminals whereby a resistor is presented between the pair of terminals.
Claim 10
Dependent Claim
23 words
means electrically coupling all of the resistor means between and to the terminals whereby a resistor is presented between the pair of terminals.
Claim 11
Dependent Claim
33 words
A resistor as recited in claim 3 wherein the means electrically coupling the resistor means includes a plurality of bus bars for selectively coupling the resistor means in various levels of the hexahedron.
Claim 12
Dependent Claim
15 words
A resistor as recited in claim 3 wherein the support frames are electrical insulating material.
References Cited (Backward Citations)
US3237142A
Cited
US3550058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-30 | 1978-07-01 | 1978-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-30 | 1982-07-01 | 1982-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-30 | 1986-07-01 | 1986-12-31 | $7700.00 | Window Closed / Lapsed |