Patent US3628833A successfully refreshed from Google Patents.
US3628833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ripping machine
Assignee: Individual
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Filing: 1970-06-04
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Granted: 1971-12-21
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Expires: 1990-06-04
Abstract
Abstract An improved roof-ripping machine having a tractor is provided which is used to thrust along the surface of a roof deck to break loose and remove old roofing paper from a roof. The machine, in addition to the tractor, consists of a ripping head having a fork assembly and a hinged shield. The fork assembly is provided with a plurality of tapered teeth to break loose and remove the roofing paper when driven forward by the tractor.
Inventors
- 👤 Daniel P Crispino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:49
CPC Classifications
E; E04; E04D; E04D15/00; E04D15/003
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
76 words
A power-driven roof-ripping machine, comprising, means for separating a covering from a deck at multiple spaced places, means for distributing thrust to said separating means at said multiple spaced places, means for thrusting said thrust distributing means, pivotally mounted shield means for deflecting said covering on separation from the deck by said separating means, separating means including a fork assembly having a plurality of laterally related teeth, and tractor means for powering said thrust distributing means.
Claim 2
Dependent Claim
76 words
A power-driven roof-ripping machine, comprising, means for separating a covering from a deck at multiple spaced places, means for distributing thrust to said separating means at said multiple spaced places, means for thrusting said thrust distributing means, pivotally mounted shield means for deflecting said covering on separation from the deck by said separating means, separating means including a fork assembly having a plurality of laterally related teeth, and tractor means for powering said thrust distributing means.
Claim 3
Dependent Claim
73 words
A power-driven roof-ripping machine as recited in claim 1, wherein said thrust distributing means including a plate member affixed to the fork assembly in the plane of said teeth, a beam member affixed to the plate member and projecting parallel thereto away from said teeth; and a coupling plate affixed angularly to said beam member, said coupling plate having means therein for attachment to said tractor means for thrusting said thrust distributing means.
Claim 4
Dependent Claim
30 words
A deck-covering ripper attachment as recited in claim 1, wherein said fork assembly includes a transverse bar carrying all said teeth, said bar being detachably affixed to said plate member.
Claim 5
Dependent Claim
30 words
A deck-covering ripper attachment as recited in claim 1, wherein said pivotally mounted deflecting means is pivotally affixed to said transverse bar and is detachable therewith from said plate member.
Claim 6
Dependent Claim
26 words
A deck-covering ripper attachment as recited in claim 1, wherein a portion of said deflecting means is supported in assembly by contact with said beam member.
Claim 7
Dependent Claim
14 words
A deck-covering ripper attachment as recited in claim 1, wherein said teeth are tapered.
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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |