Patent US2712470A successfully refreshed from Google Patents.
Patent US3782894A successfully refreshed from Google Patents.
US3782894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil separator
Assignee: Individual
•
Filing: 1972-03-16
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Granted: 1974-01-01
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Expires: 1992-03-16
Abstract
Abstract A coil spacer adapted to be interposed between a pair of stacked coils in an annealing furnace. The spacer has two superimposed contiguous layers of wedge shaped plates arranged to define an annulus with a central opening. In one form the plates of one layer are radially extending defining radially extending channels and the plates of the other layer are skewed with respect to the radius to defining skewed channels intersecting the channels defined by the other layer. In another form the plates in each layer are skewed radially in opposite senses. In this form the plates are arranged so that their outer edges are rotatably offset to form a continuous outer surface and preferably the inner ends also are offset to form a continuous inner peripheral surface.
Inventors
- 👤 C Blackman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:01
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/663; C21D9/673
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
98 words
A coil spacer adapted to be interposed between a pair of coils in an annealing furnace comprising, two contiguous layers of flat metal plates in superimposed contacting connected face-to-face relationship, the plates being arranged and configured to define generally an annulus with a central opening, the plates in one layer being individually outwardly tapered and extending substantially radially from said central opening and defining passages extending radially therebetween; the plates in the other layer being individually outwardly tapered and skewed in one direction with respect to the radii of the armature and defining passages extending skewed radially therebetween.
Claim 2
Dependent Claim
98 words
A coil spacer adapted to be interposed between a pair of coils in an annealing furnace comprising, two contiguous layers of flat metal plates in superimposed contacting connected face-to-face relationship, the plates being arranged and configured to define generally an annulus with a central opening, the plates in one layer being individually outwardly tapered and extending substantially radially from said central opening and defining passages extending radially therebetween; the plates in the other layer being individually outwardly tapered and skewed in one direction with respect to the radii of the armature and defining passages extending skewed radially therebetween.
Claim 3
Dependent Claim
26 words
The invention as defined in claim 1 wherein the outer edges of the plates of the two layers are circumferentially offset with respect to each other.
Claim 4
Dependent Claim
21 words
The invention as defined in claim 2 wherein the outer edges of the plates define a substantially continuous outer peripheral surface.
Claim 5
Dependent Claim
21 words
The invention as defined in claim 2 wherein the inner edge of the plates define a substantially continuous inner peripheral surface.
Claim 6
Dependent Claim
22 words
The invention as defined in claim 2 wherein the outer and inner surfaces define substantial continuous outer and inner peripheral surfaces respectively.
Claim 7
Dependent Claim
19 words
The invention as defined in claim 1 wherein the edges of the plates of both layers are substantially straight.
Claim 8
Dependent Claim
19 words
The invention as defined in claim 1 wherein the plates of said other layer are of a curved configuration.
Claim 9
Dependent Claim
25 words
The invention as defined in claim 1 wherein each plate of one layer is contiguous with no more than two plates of the other layer.
Claim 10
Dependent Claim
146 words
A coil spacer adapted to be interposed between a pair of coils in an annealing furnace comprising, two contiguous layers of flat metal plates in superimposed contacting connected relationship, the plates being arranged and configured to define a central opening, the plates in one layer being outwardly tapered and being skewed in one direction with respect to the radii of the spacer, defining passages extending skewed radially therebetween, the plates in the other layer being outwardly tapered and being skewed in the opposite direction from those in said one layer with respect to tHe radii of the spacer and defining passages extending skewed radially therebetween, the outer edges of the plates of the first and second layers being circumferentially offset with respect to each other and being of sufficient arc length that the ends of the plates of each layer form a substantially continuous outer surface.
Claim 11
Dependent Claim
146 words
A coil spacer adapted to be interposed between a pair of coils in an annealing furnace comprising, two contiguous layers of flat metal plates in superimposed contacting connected relationship, the plates being arranged and configured to define a central opening, the plates in one layer being outwardly tapered and being skewed in one direction with respect to the radii of the spacer, defining passages extending skewed radially therebetween, the plates in the other layer being outwardly tapered and being skewed in the opposite direction from those in said one layer with respect to tHe radii of the spacer and defining passages extending skewed radially therebetween, the outer edges of the plates of the first and second layers being circumferentially offset with respect to each other and being of sufficient arc length that the ends of the plates of each layer form a substantially continuous outer surface.
Claim 12
Dependent Claim
39 words
The invention as defined in claim 9 wherein the inner edges of the plates of each layer are circumferentially offset with respect to each other and of being sufficient arc length that they define a substantially continuous innerperipheral surface.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |