Patent US4157001A successfully refreshed from Google Patents.
US4157001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace linings
Assignee: Stemcor Corp
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Filing: 1978-01-13
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Granted: 1979-06-05
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Expires: 1998-01-13
Abstract
Abstract There is disclosed a device for securing refractory and/or insulating material against a furnace wall. The device comprises a metal pin or stud which is attached to the wall at one end and is provided with a plurality of notched portions adjacent the other end. The stud cooperates with a hollow, preferably ceramic anchor, which is provided with a rectangular slot that fits over the notched portion of the stud and may be secured thereon by rotating an anchor through 90 degrees to effect a locking arrangement. The anchors may be interfitted in order to provide a support for electrical heating elements. The significant feature is that the size of the anchor is such as to allow another anchor to interlock and make a collar which can support electrical heating elements. As the anchor is preferably a ceramic support it is electrically insulating, and prevents the electrical heating elements from contacting the studs.
Inventors
- 👤 Allan E. Pickles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:38
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/14; F27D1/144
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
179 words
A high temperature insulation construction comprising (1) a structural supporting member, (2) a body of insulating material superimposed over the structural supporting member, (3) a metallic stud bearing a plurality of pairs of anchor-engaging notches, the stud being attached at one end of the stud to the structural supporting member and disposed essentially perpendicular to the structural supporting member; (4) a first anchor positioned over the stud and engaging a first pair of notches in the metallic stud, to hold the body of insulating material between the anchor and the structural supporting member, the first anchor having a tapered cavity which is shaped and dimensioned as to permit an identical anchor to be partially inserted within the cavity in the first anchor and engage a second pair of notches in the metallic stud, the second pair of notches being more distant from the structural supporting member than the first; and (5) a removable second anchor, essentially identical to the first anchor, fitted within the cavity of the first anchor, engaging the second pair of notches in the metallic stud.
Claim 2
Dependent Claim
179 words
A high temperature insulation construction comprising (1) a structural supporting member, (2) a body of insulating material superimposed over the structural supporting member, (3) a metallic stud bearing a plurality of pairs of anchor-engaging notches, the stud being attached at one end of the stud to the structural supporting member and disposed essentially perpendicular to the structural supporting member; (4) a first anchor positioned over the stud and engaging a first pair of notches in the metallic stud, to hold the body of insulating material between the anchor and the structural supporting member, the first anchor having a tapered cavity which is shaped and dimensioned as to permit an identical anchor to be partially inserted within the cavity in the first anchor and engage a second pair of notches in the metallic stud, the second pair of notches being more distant from the structural supporting member than the first; and (5) a removable second anchor, essentially identical to the first anchor, fitted within the cavity of the first anchor, engaging the second pair of notches in the metallic stud.
Claim 3
Dependent Claim
15 words
A construction as claimed in claim 1, wherein the anchors are made of ceramic material.
Claim 4
Dependent Claim
18 words
A construction as claimed in claim 1, wherein the stud is attached to the support member by welding.
Claim 5
Dependent Claim
18 words
A construction as claimed in claim 1, wherein the anchors have shoulder means for retaining the insulating material.
Claim 6
Dependent Claim
15 words
A construction as claimed in claim 1, wherein said second anchor is cylindrical in configuration.
Claim 7
Dependent Claim
17 words
A construction as claimed in claim 1, wherein the shape of said anchor is a truncated cone.
Claim 8
Dependent Claim
21 words
A construction as claimed in claim 1, wherein the metallic stud is of rectangular cross section and the notches are discrete.
Claim 9
Dependent Claim
26 words
A construction as claimed in claim 1, wherein the metallic stud is of circular cross section and the notches are connected to form a threaded stud.
Claim 10
Dependent Claim
30 words
A construction as claimed in claim 1, wherein the unattached end of the stud extends into the cavity in the first anchor, after passage through an aperture in the anchor.
Claim 11
Dependent Claim
16 words
A construction as claimed in claim 9, wherein the cavity is filled with an insulating material.
Claim 12
Dependent Claim
18 words
A construction as claimed in claim 10, wherein the insulating material is insulating refractory fibers or refractory cements.
References Cited (Backward Citations)
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US3742670A
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US3881288A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-04 | 1982-12-04 | 1983-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-04 | 1986-12-04 | 1987-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-04 | 1990-12-04 | 1991-06-05 | $7700.00 | Window Closed / Lapsed |