Winding – tensioning – or guiding – Convolute winding of material – With particular drive
Reexamination Certificate
1999-10-14
2001-05-08
Jillions, John M. (Department: 3653)
Winding, tensioning, or guiding
Convolute winding of material
With particular drive
C242S405300, C242S571400, C242S573200, C242S598100, C156S345420
Reexamination Certificate
active
06227479
ABSTRACT:
TECHNICAL FIELD
This invention relates to a separation film retriever and more particularly to an apparatus for removing a separation film from a sealing strip that creates a seal between two overlapping sheet of rubber roofing material.
BACKGROUND OF THE INVENTION
Roofs on industrial buildings are frequently covered by a membrane made from a rubber like material. These membranes form a watertight cover that lasts for a number of years and can be applied in a short period of time. Flat roofs as well as roofs with a slope are covered by these rubber membranes.
Rubber sheets for constructing a roofing membrane are formed and then rolled. Each roll of rubber sheet material is generally four to eight feet wide or so and can be several hundred feet long. For use on large buildings, the sheet material can be more than eight feet wide.
A roll of rubber roofing material is lifted to a roof and then unrolled on the roof with one edge overlapping an edge of another sheet of rubber roofing material. The overlap is generally about three to nine inches. The overlapping edge is then folded over to expose the overlapped edge.
A roll of adhesive material is then unrolled on the exposed overlapped edge. This adhesive material is a rubber like compound that is deposited on a strip of separation film and then rolled up. These adhesive material and separation film rolls are generally 2, 4, 6 or 8 inches wide. The separation film strip is on top of the adhesive material strip after the roll is unrolled. The separation film is then removed from the upper surface of the adhesive material strip and the overlapping edge of roofing material is unfolded and placed in contact with the adhesive material strip. A roller applies pressure to the overlapping edge to form a watertight seal between the overlapped edge and the overlapping edge.
The separation film is currently wadded up and stuffed into plastic bags as it is removed from the adhesive material. A plastic bag holds a limited quantity of the wadded up strip of separation film. It is therefore necessary to contain and store a number of plastic bags filled with separation film on the roof until they can be carried to the ground for disposal.
Occasionally wind catches an unsecured strip of separation film material and carries it off the roof. These strips of loose separation film are difficult to retrieve for proper disposal once they are blown off the roof and scattered around on the ground.
Plastic bags are somewhat expensive. Disposal of plastic bags is also a problem. Most plastics are made from hydrocarbons and may require several decades to disintegrate in a landfill. If incinerated, toxic gases may be formed from plastic bags thereby creating additional environmental problems.
SUMMARY OF THE INVENTION
The sealing strip separation film retrieve tool includes a drum with a tubular spindle. A first end plate is permanently secured to a first end of the spindle. A crank is secured to the first end plate and extends axially outward from the first end plate and the spindle. A first handle section is journaled on a first arm of the crank.
A plurality of slots are formed in the spindle and extend from a second spindle end toward the first end plate. A shaft has an inner end, at least one integral spindle support block on the inner end, and a second end plate fixed to a portion of the shaft. A second handle section is journaled on an outboard end of the shaft.
The at least one integral spindle support block is telescopically received in the spindle and the second handle section engages the first handle section when the drum is assembled for use. The integral spindle support block is disengaged from the spindle and the second handle section disengages from the first handle section when the drum is disassembled for discharging separation film rolls.
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patent: 5465922 (1995-11-01), Groef
patent: 5686179 (1997-11-01), Cotsakis et al.
patent: 5733621 (1998-03-01), Cotsakis et al.
patent: 6004426 (1999-12-01), Johnson
Dean William L.
Doud David L.
Jillions John M.
Reising Ethington, Barnes, Kisselle, Learman & McCulloch, P.C.
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