Sleeping bag

Claim 2

A sleeping bag including an elongate, normally flat, horizontal base section with top and bottom surfaces, longitudinal side edges, transverse upper and lower edges and defining an upper head supporting portion, a central body supporting portion and a lower leg supporting portion, said base section including a core of soft, flexible, resilient, heat insulating body supporting foam plastic and a flexible fabric envelope about the core; an elongate, normally flat, horizontal, soft, flexible quilted fabric top section with a filler of heat insulating material overlying the base section and defining top and bottom surfaces longitudinal side edges, transverse upper and lower edges and having an upper body covering portion and a central leg covering portion equal in longitudinal extent and greater in lateral extent than the body and leg supporting portions of the base section and having a lower foot portion; and, releasable connecting means securing the side edges of the body and leg portions of the top sections with adjacent side edges of the body and leg portions of the base section and securing laterally spaced portions of the edges of the foot portion to the opposite and related one-half portions of the lower edge of the base portion and releasable fastening means securing the portion of the edges of the foot portion, between said laterally spaced portions thereof, together in folded relationship.

Claim 3

A structure as set forth in claim 1 including, laterally spaced longitudinally upwardly extending flexible hood extensions with upper ends at the upper end of the body covering portion of the top section to overlay and in supported engagement with the top surfaces of the head supporting portion of the base section and connecting means releasably securing the upper ends of the extensions together in substantially upwardly and laterally arched relationship and defining an upwardly opening head accommodating hood.

Claim 4

A structure as set forth in claim 2 and which further includes releasable connecting means between and releasably securing the portions of the hood extensions opposing the top surface of the head supporting portion to said top surface.

Claim 5

A structure as set forth in claim 1 wherein the releasable connecting means includes elongate longitudinally extending outer primary fastening means at and between the related edges of the construction and inner secondary fastening means at and between the edge portions of the sections adjacent the outer primary fastening means and releasably securing the said edge portions together inward of said primary fastening means and to insulate against loss of heat between related connected portions of the sections.

Claim 6

A structure as set forth in claim 2 wherein the releasable connecting means includes elongate longitudinally extending outer primary fastening means at and between the related edges of the construction and inner secondary fastening means at and between the edge portions of the sections adjacent the outer primary fastening means and releasably securing the said edge portions together inward of said primary fastening means to seal againSt drafts through the primary fastening means and to insulate against loss of heat between related connected portions of the sections.

Claim 7

A structure as set forth in claim 1 wherein the edges of the base section are substantially flat, vertically, outwardly disposed edges and said base section has substantially flat, horizontal flanges at its bottom surface and projecting outward from the vertical edges, said releasable connecting means including elongate longitudinally extending outer primary fastening means at and between outer edges of the flanges and related edges of the top section and inner secondary fastening means at and between the vertical side edges of the base section and adjacent opposing bottom edge portions of the top section and releasably holding said edge portions of the top section in substantially seated sealing engagement in corners established by the vertical side edges and their related flanges, inward of the primary fastening means.

Claim 8

A structure as set forth in claim 6 wherein the outer primary fastening means include mating, elongate zipper elements on related edges of the structure and pulls related to said elements, said inner secondary fastening means including longitudinally spaced opposing pairs of interengageable fastener elements fixed to and carried by the sections.

Claim 9

A structure as set forth in claim 1 including, laterally spaced longitudinally upwardly extending flexible hood extensions with upper ends projecting at the upper end of the body covering portion of the top section to overlay and in supported engagement with the top surfaces of the head supporting portion of the base section and connecting means releasably securing the upper ends of the extensions together in substantially upwardly and laterally arched relationship and defining an upwardly opening head accommodating hood, the edges of the base section are substantially flat, vertically, outwardly disposed edges and said base section has flanges at its bottom surface and projecting outward from the vertical edges, said releasable connecting means including elongate longitudinally extending outer primary fastening means at and between outer edges of the flanges and related edges of the top section and inner secondary fastening means at and between the vertical side edges of the base sections and adjacent opposing bottom edge portions of the top section and releasably holding said edge portions of the top section in substantially seated sealing engagement in corners established by the vertical side edges and their related flanges, inward of theprimary fastening means.

Claim 10

A structure as set forth in claim 1 including, laterally spaced longitudinally upwardly extending flexible hood extensions with upper ends projecting at the upper end of the body covering portion of the top section to overlay and in supported engagement with the top surfaces of the head supporting portion of the base section and connecting means releasably securing the upper ends of the extensions together in substantially upwardly and laterally arched relationship and defining an upwardly opening head accommodating hood, releasable connecting means between and releasably securing the portions of the hood extensions opposing the top surface of the head supporting portion to said top surface, the edges of the base section are substantially flat, vertically, outwardly disposed edges and said base section has substantially flat, horizontal flanges at its bottom surface and projecting outward from the vertical edges, said releasable connecting means including elongate longitudinally extending outer primary fastening means at and between outer edges of the flanges and related edges of the top section and inner secondary fastening means at and between the vertical side edges of the base section and adjacent opposing bottom edge portions of the top section and releasably holding said edge portions of the top section in substantially seated sealing engagement in corners established by the vertical side edges and thEir related flanges, inward of the primary fastening means.

Claim 11

A structure as set forth in claim 9 wherein the outer primary fastening means include mating, elongate zipper elements on related edges of the structure and pulls related to said elements, said inner secondary fastening means including longitudinally spaced opposing pairs of interengageable fastener elements fixed to and carried by the sections.

Claim 12

A sleeping bag including an elongate, normally flat, horizontal base section with top and bottom surfaces, longitudinal side edges, transverse upper and lower edges and defining an upper head supporting portion, a central body supporting portion and a lower leg supporting portion, said base section including a core of soft, flexible, resilient, heat insulating body supporting foam plastic and a flexible fabric envelope about the core; an elongate, normally flat, horizontal, soft, flexible quilted fabric top section with a filler of heat insulating material overlying the base section and defining top and bottom surfaces longitudinal side edges, transverse upper and lower edges and having an upper body covering portion and a central leg covering portion equal in longitudinal extent and greater in lateral extent than the body and leg supporting portions of the base section and, releasable connecting means securing side edges of the body and leg portions of the top sections with adjacent edges of the body and leg portions of the base section, said releasable connecting means including elongate zipper assemblies at and between adjacent related edges and a plurality of releasably engageable fastening elements on opposing surfaces of the sections in longitudinal and lateral spaced relationship from each of said edges and said zipper assemblies and releasably holding the edge portions of said sections adjacent said edges in juxtaposition.

Claim 13

A sleeping bag including an elongate, normally flat, horizontal base section with top and bottom surfaces, longitudinal side edges, transverse upper and lower edges and defining an upper head supporting portion, a central body supporting portion and a lower leg supporting portion, said base section including a core of soft, flexible, resilient, heat insulating body supporting foam plastic and a flexible fabric envelope about the core; an elongate, normally flat, horizontal, soft, flexible quilted fabric top section with a filler of heat insulating material overlying the base section and defining top and bottom surfaces longitudinal side edges, transverse upper and lower edges and having an upper body covering portion and a central leg covering portion equal in longitudinal extent and greater in lateral extent than the body and leg supporting portions of the base section and, releasable connecting means securing side edges of the body and leg portions of the top sections with adjacent edges of the body and leg portions of the base section, said releasable connecting means including elongate zipper assemblies at and between adjacent related edges and a plurality of releasably engageable fastening elements on opposing surfaces of the sections in longitudinal and lateral spaced relationship from each of said edges and said zipper assemblies and releasably holding the edge portions of said sections adjacent said edges in juxtaposition.

Claim 14

A structure as set forth in claim 11 wherein said edges of the base section define substantially vertical surfaces, said base section has flanges projecting outwardly from said edges on a plane substantially common with the bottom surface of said section, said zipper assemblies having elements fixed to the outer edges of said flanges, said fastening elements on the base section being fixed to said vertical surfaces, said interengageable fastening elements releasably holding the edge portions of the top section downwardly and laterally inwardly in the corners established by the vertical surfaces and the flanges.

Claim 15

A structure as set forth in claim 12 wherein the releasably engageable fastening elements comprise registerable, opposing Velcro pads fixed to the sections.