US4011394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kilns
Assignee: Individual
•
Filing: 1975-07-09
•
Granted: 1977-03-08
•
Expires: 1995-07-09
Abstract
Abstract A set of components for use in the construction of a kiln comprising a number of holding devices adapted to be mounted on the outside of a kiln, a number of tie bars engageable in the holding devices so that the tie bars project into the kiln through the insulated walls thereof, and slabs or sheets of lightweight lining material adapted to be supported by the tie bars at the inner surface of the kiln wall.
Inventors
- 👤 Donald Percy Shelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:21
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/14; F27D1/144; H; H05; H05B; H05B3/00; H05B3/62; H05B3/66
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
56 words
A kiln in which inwardly extending cantilevered support ties are located and secured in position in holding devices on the outside of the kiln, the support ties being arranged so as to carry ceramic fibre or like lightweight lining material on the inside of the kiln and being in the form of bars of refractory material.
Claim 2
Dependent Claim
56 words
A kiln in which inwardly extending cantilevered support ties are located and secured in position in holding devices on the outside of the kiln, the support ties being arranged so as to carry ceramic fibre or like lightweight lining material on the inside of the kiln and being in the form of bars of refractory material.
Claim 3
Dependent Claim
83 words
A kiln as claimed in claim 1, in which the outer ends of the refractory support ties are clamped and secured in the holding devices by means of pegs passed through holes in the bars and in the holding devices so that the support ties extend inwardly through the kiln wall and the lining material for a distance determined by selection of the appropriate hole for receiving the peg in the holding device, the units of lining material bearing on the support ties.
Claim 4
Dependent Claim
65 words
A kiln as claimed in claim 1, having electrical heating means in which the support ties are formed at their inner end with upstanding lugs by means of which continuous electrical heating element carriers are retained in position, said heating element carriers being in the form of a plurality of elongated troughs or channels in abutting end-to-end relationship and having stepped shoulders at their ends.
Claim 5
Dependent Claim
36 words
A kiln as claimed in claim 3, in which the cross-sectional form of the heating element carriers includes a depending rear portion adapted to abut against the faces of the ceramic fibre or other lining material.
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) | 1980-03-07 | 1980-09-06 | 1981-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-07 | 1984-09-06 | 1985-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-07 | 1988-09-06 | 1989-03-08 | $7700.00 | Window Closed / Lapsed |