Patent US4617198A successfully refreshed from Google Patents.
US4617198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making roofing
Assignee: Transmet Corp
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Filing: 1985-09-23
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Granted: 1986-10-14
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Expires: 2005-09-23
Abstract
Abstract Roofing roll products are manufactured by method and apparatus which projects a plurality of aluminum chips onto a tacky upper surface of a base material such that the chips have a flat contiguous relationship to provide a protective layer on the upper surface of the roofing material.
Inventors
- 👤 John R. Overturf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:34
CPC Classifications
B; B05; B05C; B05C19/00; B05D; B05D1/00; B05D1/02; B05D1/12; E; E04; E04D; E04D5/00; E04D5/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
113 words
A method of producing roofing material which comprises providing a base strip which has an adhesive surface and directing flat metal chips of rectangular shape onto said surface to provide a flat protective layer of the chips on the adhesive surface, moving the strip continuously beneath a rotating distributing roll and directing the chips continuously into contact with said roll prior to the time said chips are directed onto said surface, the roll being provided with grooves at angularly spaced positions around said roll to provide sides which engage the chips and fling them onto the adhesive surface of the strip to lay a uniform flat layer of the chips on the surface.
Claim 2
Independent Claim
113 words
A method of producing roofing material which comprises providing a base strip which has an adhesive surface and directing flat metal chips of rectangular shape onto said surface to provide a flat protective layer of the chips on the adhesive surface, moving the strip continuously beneath a rotating distributing roll and directing the chips continuously into contact with said roll prior to the time said chips are directed onto said surface, the roll being provided with grooves at angularly spaced positions around said roll to provide sides which engage the chips and fling them onto the adhesive surface of the strip to lay a uniform flat layer of the chips on the surface.
Claim 3
Dependent Claim
20 words
The method according to claim 1 in which the base strip has an asphalt surface and the chips are aluminum.
Claim 4
Dependent Claim
30 words
The method according to claim 2 in which the rectangular chips are of a size of about 10 to 200 mils on a side by 1 to 2 mils thick.
Claim 5
Dependent Claim
25 words
The method according to claim 3 in which the asphalt surface is tacky to receive the chips and the chips are pressed into the asphalt.
Claim 6
Dependent Claim
39 words
The method of claim 2 in which the roll has a center line and is driven at such speed that it projects the chips about four to twenty-two inches from the center line before said chips contact the strip.
Claim 7
Dependent Claim
35 words
The method of claim 1 in which the strip is moved in one direction beneath the roll and the roll is rotated in the opposite direction to fling the chips onto the oncoming strip surface.
Claim 8
Dependent Claim
21 words
The method of claim 1 in which a uniform stream of chips is deposited on the roll as it is rotated.
Claim 9
Dependent Claim
23 words
The method of claim 7 in which the grooves of the roll are of V-cross section and are spaced uniformly around the roll.
Claim 10
Dependent Claim
43 words
The method of claim 8 in which each V-cross section groove has a trailing side which extends radially of the roll so as to engage the chips and a leading side at an angle of approximately thirty degrees to the radially extending side.
Claim 11
Dependent Claim
52 words
The method of claim 9 in which the grooves are spaced apart about an eighth of an inch to provide a chip-contacting surface therebetween, and each groove is of a width at its outer side of about one-one hundred twenty-eighth inch and is of a depth of about one-sixty-fourth of an inch.
Claim 12
Dependent Claim
30 words
The method according to claim 1 in which the rectangular chips are of a size of about 10 to 200 mils on a side by 1 to 2 mils thick.
Claim 13
Dependent Claim
23 words
The method of claim 1 in which the grooves of the roll are of V-cross section and are spaced uniformly around the roll.
Claim 14
Dependent Claim
43 words
The method of claim 1 in which each V-cross section groove has a trailing side which extends radially of the roll so as to engage the chips and a leading side at an angle of approximately thirty degrees to the radially extending side.
Claim 15
Dependent Claim
52 words
The method of claim 1 in which the grooves are spaced apart about an eighth of an inch to provide a chip-contacting surface therebetween, and each groove is of a width at its outer side of about one-one hundred twenty-eighth inch and is of a depth of about one-sixty-fourth of an inch.
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) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |