Patent ID: 11866989
Assignee: WEXENERGY LLC
Field: Civil engineering (Other fields)
Classification: CPC E  G | IPC E

Claim 0:
1. A supplemental window apparatus for mounting onto a window pane, comprising:
a substantially non porous sheet material having an outer perimeter and a plurality of corners and edges defining a sheet area configured to substantially correspond to a perimeter area of the window pane that extends between the edges of the substantially non porous sheet material projected onto the window pane and edges of the window pane held by a sash or frame when the supplemental window apparatus is mounted on the window pane;
a constraint configured to constrain one of the plurality of corners of the substantially non porous sheet material, the constraint coupled to an attachment mechanism that attaches the constraint to the window pane in a corner area of the window pane when the supplemental window apparatus is mounted to the window pane with the substantially non porous sheet material substantially parallel to the window pane, a portion of the constraint configured to be located outward from the outer perimeter of the sheet in a direction parallel to the sheet and away from the center of the fenestration; and
a seal attached along each of the edges of the sheet material.