US4045263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of roofing procedure
Assignee: Individual
•
Filing: 1975-02-20
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Granted: 1977-08-30
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Expires: 1995-02-20
Abstract
Abstract A system of temperature determination and control for molten bituminous material during construction of built-up roofs is provided wherein a heating temperature is preselected based upon a number of factors and is adjusted insofar as may be called for upon checking the temperature upon application to the roof deck. Factors considered in the predetermination include type of bituminous material, type of roofing material, and deck type and temperature; ambient temperature, cloud cover, and wind speed; and also opportunities for cooling of the bituminous material between temperature-controlled and deck locations, during application to the deck, and thereafter until application of an overlying layer of roofing material.
Inventors
- 👤 Robert J. Moore
- 👤 Gerald B. Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:13
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/1906; G05D23/1909
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
71 words
In formation of built-up roofs using molten bituminous material to adhere layers of roofing material, the improvement comprising heating bituminous material to melt it, sensing the temperature of the bituminous material being heated, sensing the temperature of molten bituminous material on the roof deck, and adjusting the heating temperature so that the temperature of the molten bituminous material applied to the deck will be within a predetermined satisfactory adhesion temperature range.
Claim 2
Dependent Claim
71 words
In formation of built-up roofs using molten bituminous material to adhere layers of roofing material, the improvement comprising heating bituminous material to melt it, sensing the temperature of the bituminous material being heated, sensing the temperature of molten bituminous material on the roof deck, and adjusting the heating temperature so that the temperature of the molten bituminous material applied to the deck will be within a predetermined satisfactory adhesion temperature range.
Claim 3
Dependent Claim
37 words
Roof formation according to claim 1, wherein the bituminous material is asphalt and the heating temperature of the melt thereof is maintained within about ±25° F of a preselected temperature between about 350° F and 500° F.
Claim 4
Dependent Claim
37 words
Roof formation according to claim 1, wherein the bituminous material is pitch and the heating temperature of the melt thereof is maintained within about ±25° F of a selected temperature between about 300° F and 425° F.
Claim 5
Dependent Claim
23 words
Roof formation according to claim 1, including signalling whenever the temperature of the molten bituminous material exceeds the tolerance limits in either direction.
Claim 6
Dependent Claim
33 words
Roof formation according to claim 4, wherein the signalling includes a visual signal indicative of whether the temperature is too high or too low, and an audible signal indicative of each such extreme.
Claim 7
Dependent Claim
73 words
In formation of built-up roofs, requiring determination of heating temperature in melting of bituminous material for adhering adjacent layers of roofing material, the improvement comprising selecting the composition of roofing material to be used, sensing ambient conditions including roof deck temperature conducive to temperature change of the molten bituminous material, and basing the heating temperature in predetermined manner upon such material composition and upon such ambient conditions conducive to such temperature change .
Claim 8
Dependent Claim
73 words
In formation of built-up roofs, requiring determination of heating temperature in melting of bituminous material for adhering adjacent layers of roofing material, the improvement comprising selecting the composition of roofing material to be used, sensing ambient conditions including roof deck temperature conducive to temperature change of the molten bituminous material, and basing the heating temperature in predetermined manner upon such material composition and upon such ambient conditions conducive to such temperature change .
Claim 9
Dependent Claim
49 words
Roofing process according to claim 6, wherein the desired temperature is adjusted higher for asphalt than for pitch as the bituminous material, higher for roofing material of low conductivity than for roofing material of relatively high conductivity, and higher for low deck temperature than for relatively high deck temperature.
Claim 10
Dependent Claim
53 words
In formation of built-up roofs, for which bituminous material is heated to a controlled temperature preparatory to application thereof to a roof deck, the improvement comprising sensing the temperature of the roof deck and taking the sensed temperature into account in controlling the heating temperature of the bituminous material to optimize on-deck adhesion.
Claim 11
Dependent Claim
53 words
In formation of built-up roofs, for which bituminous material is heated to a controlled temperature preparatory to application thereof to a roof deck, the improvement comprising sensing the temperature of the roof deck and taking the sensed temperature into account in controlling the heating temperature of the bituminous material to optimize on-deck adhesion.
Claim 12
Dependent Claim
57 words
In formation of built-up roofs, for which bituminous material is heated to a controlled temperature preparatory to application thereof to a roof deck, the improvement comprising sensing the temperature of the roof deck and the ambient air temperature and taking the sensed temperatures into account in controlling the heating temperatures of bituminous material to optimize on-deck adhesion.
Claim 13
Dependent Claim
57 words
In formation of built-up roofs, for which bituminous material is heated to a controlled temperature preparatory to application thereof to a roof deck, the improvement comprising sensing the temperature of the roof deck and the ambient air temperature and taking the sensed temperatures into account in controlling the heating temperatures of bituminous material to optimize on-deck adhesion.
References Cited (Backward Citations)
US3093936A
Cited
US2937779A
Cited
US3084621A
Cited
US3101898A
Cited
US3373074A
Cited
US3479210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |