← Back to Patent Explorer
US4091535A Expired / Lapsed US ⏱️ 0.0 years remaining

Shingle stripper

Assignee: Lee Raymond Organization Inc
•
Filing: 1977-06-23
•
Granted: 1978-05-30
•
Expires: 1997-06-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A guide device removably affixed to a roof includes a cable extending between the ridge and the gutter edge of the roof. An internal combustion engine is mounted in a housing having an open forward end and a closed rear end. Two drive shafts are rotatably mounted in the housing and coupled to, and rotated by, the motor. A cable drum is affixed to, and rotatable with, a drive shaft, and has the cable of the guide device wound thereon in a manner whereby as the drive shaft rotates, the cable is wound on the drum and the housing moves up the roof from the gutter to the ridge. A clutch decouples the motor from the drive shaft when the housing reaches the guide device at the ridge. Cutters at the forward end in the housing are coupled to the motor and driven thereby for cutting the nails of shingles as the housing is moved up the roof whereby the severed shingles fall into the housing and accumulate at the rear end thereof. A trap at the rear end of the housing permits removal of the severed shingles therefrom.

Inventors

  • 👤 James F. Lehrter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 09:28
CPC Classifications
E; E04; E04D; E04D15/00; E04D15/003

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 213 words
A shingle stripper for stripping shingles off a roof having a ridge and a gutter edge, said shingle stripper comprising guide means removably affixed to a roof and including a cable extending between the ridge and the gutter edge of the roof; a housing having an open forward end and a closed rear end; an internal combustion motor mounted in the housing; a pair of shafts rotatably mounted in the housing and coupled to and rotated by the motor; a cable drum affixed to and rotatable with the drive shaft having the cable of the guide means wound thereon in a manner whereby as the drive shaft rotates the cable is wound on the cable drum and the housing moves up the roof from the gutter edge to the ridge; clutch means for decoupling the motor from the drive shaft when the housing reaches the guide means at the ridge; cutting means in the housing at the forward end thereof coupled to the motor and driven thereby for cutting the nails of the shingles as the housing is moved up the roof whereby the severed shingles fall into the housing and accumulate at the rear end thereof; and trap means in the housing at the rear end thereof for removing severed shingles therefrom.
Claim 2
Dependent Claim 213 words
A shingle stripper for stripping shingles off a roof having a ridge and a gutter edge, said shingle stripper comprising guide means removably affixed to a roof and including a cable extending between the ridge and the gutter edge of the roof; a housing having an open forward end and a closed rear end; an internal combustion motor mounted in the housing; a pair of shafts rotatably mounted in the housing and coupled to and rotated by the motor; a cable drum affixed to and rotatable with the drive shaft having the cable of the guide means wound thereon in a manner whereby as the drive shaft rotates the cable is wound on the cable drum and the housing moves up the roof from the gutter edge to the ridge; clutch means for decoupling the motor from the drive shaft when the housing reaches the guide means at the ridge; cutting means in the housing at the forward end thereof coupled to the motor and driven thereby for cutting the nails of the shingles as the housing is moved up the roof whereby the severed shingles fall into the housing and accumulate at the rear end thereof; and trap means in the housing at the rear end thereof for removing severed shingles therefrom.
Claim 3
Dependent Claim 58 words
A shingle stripper as claimed in claim 1, wherein the cutting means comprises a first plurality of spaced cutting teeth and a second plurality of spaced cutting teeth reciprocally moved relative to each other by the motor to alternately provide gaps and close said gaps with said first plurality of cutting teeth thereby severing nails in the gaps.

References Cited (Backward Citations)

US3251629A Cited
US3663061A Cited
US3818593A Cited
US4009908A Cited
US4011618A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-05-29 1981-11-28 1982-05-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-05-29 1985-11-28 1986-05-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-05-29 1989-11-28 1990-05-30 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag