Tight-coil rolling grille
OwnerSteven Hahn, Paul Freberg +1inventors
InventorsSteven Hahn, Paul Freberg, Paul Lawrence
Life of this patent
Estimating the term…
Abstract
A tight-coiling rolling grille link and rolling grille system. Curved links are interconnected in vertical rows for a required height of the grille, rows are spaced apart for a required width of the grille, horizontal rods are inserted through aligned holes in the links, tubes are placed intermittently over the rods between the rows of links to maintain even spacing, and ends of the rods are mechanically secured to hold the rolling grille curtain together. The links of the grille are identical and are attached symmetrically via a tab and notch linkage scheme. The system prioritizes coiling as tightly as possible to fit in as little space above the opening as possible.
Claims20
A rolling grille system comprising:
- a plurality of curved links, each curved link affixed to an adjacent curved link through a plurality of rods, thereby forming a rolling curtain,
- wherein each curved link has substantially similar dimensions, and
- wherein the curved links cause the rolling curtain to have uniform gaps between each curved link;
- a bottom bar attached to a bottom end of the rolling curtain,
- wherein the bottom bar is configured to add horizontal rigidity to the rolling curtain;
- a barrel configured to receive the rolling curtain and coil the rolling curtain around an outer wall of the barrel,
- wherein the substantially similar dimensions of each curved link reduce a size of the coil by reducing a gap between each layer of the coil;
- and
- at least one vertical guide configured to direct a vertical end of the rolling curtain when the rolling is opening or closing.
A rolling grille comprising:
- a plurality of curved links, each curved link affixed to an adjacent curved link through a plurality of rods, thereby forming a rolling grille curtain configured to form a tight coil when rolled,
- wherein each curved link has substantially similar dimensions to reduce a spacing formed between each layer of the tight coil, and
- wherein the curved links cause the rolling grille curtain to have uniform gaps between each curved link;
- and
- a bottom bar attached to a bottom end of the rolling grille curtain,
- wherein the bottom bar is configured to add horizontal rigidity to the rolling grille curtain to reduce the spacing between each layer of the tight coil.
A tight coil rolling grille system comprising:
- a plurality of curved links, each curved link affixed to an adjacent curved link through a plurality of rods thereby forming a rolling curtain configured to form the tight coil when rolled,
- wherein each curved link has substantially similar dimensions to reduce a spacing formed between each layer of the tight coil, and
- wherein the curved links causes the rolling curtain to have uniform gaps between each curved link;
- and
- a bottom bar attached to a bottom end of the rolling curtain,
- wherein the bottom bar is configured to add horizontal rigidity to the rolling curtain.
Dependencies are inferred from the claim text.