Johns Manville

John A Fry

Robert J Allwein

Larry J Weinstein

Jo M Teague, Iii

William H Olbert

Vern C Plotts

An easy-opening insulation package for containing a stack of resilient insulation batts, such as but not limited to glass fiber insulation batts, is formed from a sheet material. The sheet material completely encircles the batts and has a stress riser that extends longitudinally with respect to the batts for the length of the batts. Preferably, the sheet material has at least one tear line, such as a perforated line, extending generally perpendicular to and crossing the stress riser for creating an opening in the package through the rupture of the sheet material by hand along the perforated line and for permitting the stress riser to be separated by hand from the opening created along the perforated line to gain access to the batts within the package. Preferably, the ends of the package are closed and the perforated line completely encircles the package to permit the package to be separated into two sections by rupturing the perforated line along its entire length.

Tool free, easy-opening insulation package

A portable batt cutter custom cuts standard width, continuous, extended length fibrous insulation blankets at a construction site to form batts with specific dimensions corresponding to the dimensions of the structural framework cavities to be insulated. The portable batt cutter includes storage for retaining a fibrous insulation blanket; a feed mechanism for feeding the fibrous insulation blanket from the storage to a transverse cutter; and the transverse cutter which makes a transverse cut across the width of the fibrous insulation blanket to determine the length of the batt. The portable batt cutter may also include a cutter for making a longitudinal cut in the fibrous insulation blanket to form a batt having a width less than the width of the fibrous insulation blanket and a measuring device to measure the length of the batt prior to forming the transverse cut in the fibrous insulation blanket. The portable batt cutter has a size and weight enabling the cutter to be readily moved from construction site to construction site.

Portable batt cutter

A fibrous insulation blanket is pre-cut for custom fitting the insulation blanket into structural framework building cavities of different widths. The width of the blanket is substantially equal to the width of a standard cavity to be insulated by the blanket and the blanket has one or more longitudinally extending cuts in a first major surface of the blanket. The cut(s) have a depth greater than one half of the thickness of the blanket and less than the thickness of the blanket whereby the blanket can be handled as a unit for insulating a cavity having a standard cavity width or easily torn apart at a cut by hand for insulating a cavity having less than a standard cavity width. The second major surface of the blanket may have a facing bonded thereto with one or more perforated lines in the facing aligned with the cut(s) to facilitate tearing apart the blanket by hand if required. Preferably, the perforations of the perforated line(s) are closed by the bonding agent bonding the facing to the blanket so that the facing functions as a vapor barrier in spite of the perforations.

Growing community of inventors

Conifer, CO, United States of America

John A Fry