Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
91 words
A method of making a thermal compress comprising sandwiching a wall between two sheets and connecting the sheets to the wall along a closed line to form separate compartments, sealing a tear strip between said wall and one of said sheets, bending said wall and sheets as well as said tear strip transversely of the latter and, before the tear strip is sealed between said wall and said one sheet, at least partly straightening the tear strip to decrease the effective length thereof relative to that of said wall and sheets.
Claim 2
Independent Claim
91 words
A method of making a thermal compress comprising sandwiching a wall between two sheets and connecting the sheets to the wall along a closed line to form separate compartments, sealing a tear strip between said wall and one of said sheets, bending said wall and sheets as well as said tear strip transversely of the latter and, before the tear strip is sealed between said wall and said one sheet, at least partly straightening the tear strip to decrease the effective length thereof relative to that of said wall and sheets.
Claim 3
Dependent Claim
19 words
A method as claimed in claim 1 comprising sealing the tear strip to said wall along a V-shaped seam.
Claim 4
Dependent Claim
24 words
A method as claimed in claim 2 comprising loading foam plastic elements into at least one of said compartments to form an insulation layer.
Claim 5
Dependent Claim
122 words
Apparatus for manufacturing a thermal compress comprising sources of three sheets of plastic, guide means to guide the same into face-to-face relationship with one of the sheets sandwiched between the other two sheets, sealing means to seal the sheets together to form two pockets separated by said one sheet which constitutes a wall between the pockets, supply means to supply into respective of said pockets substances which when mixed result in a thermal change, sealing means to seal the pockets closed, a source of a strip, sealing means to seal said strip to said wall, means to bend the sheets and strip transversely of the latter, and means to straighten the strip at least in part before the pockets are sealed closed.
Claim 6
Dependent Claim
122 words
Apparatus for manufacturing a thermal compress comprising sources of three sheets of plastic, guide means to guide the same into face-to-face relationship with one of the sheets sandwiched between the other two sheets, sealing means to seal the sheets together to form two pockets separated by said one sheet which constitutes a wall between the pockets, supply means to supply into respective of said pockets substances which when mixed result in a thermal change, sealing means to seal the pockets closed, a source of a strip, sealing means to seal said strip to said wall, means to bend the sheets and strip transversely of the latter, and means to straighten the strip at least in part before the pockets are sealed closed.
Claim 7
Dependent Claim
31 words
Apparatus as claimed in claim 4 comprising further means to apply to the wall a device for controllably forming in the wall a passage through which said substances can be mixed.
Claim 8
Dependent Claim
32 words
Apparatus as claimed in claim 5 wherein the sealing means to seal the pockets closed is positioned to seal said strip in one of said pockets when the latter are sealed shut.
Claim 9
Dependent Claim
26 words
Apparatus as claimed in claim 6 wherein the sealing means to seal the strip to the wall includes a member shaped to form a V-shaped seam.
Claim 10
Dependent Claim
38 words
Apparatus as claimed in claim 6 wherein said guiding means includes at least one concave roller to provide for the admission of one of said substances into one of said pockets and to permit straightening of said strip.