초록 ▼

The present invention relates to a method for optically marking an elongated indication path. This method is comprised of supporting an optic sieve (1) along an exposed indication path, and aligning an end (4) of the optic sieve (1) (or networks of sections of optic sieves) with a light source (2) (

The present invention relates to a method for optically marking an elongated indication path. This method is comprised of supporting an optic sieve (1) along an exposed indication path, and aligning an end (4) of the optic sieve (1) (or networks of sections of optic sieves) with a light source (2) (or light socket harnessing the collective outputs of a plurality of light sources). The optic sieve (1) in the context of the present invention is characterised by having at least one side emitting optic fiber within a flexible semi opaque holographically grooved sleeve. The present invention also relates to devices having optically marked elongated indication paths according to the method of the present invention.

대표청구항 ▼

The present invention relates to a method for optically marking an elongated indication path. This method is comprised of supporting an optic sieve (1) along an exposed indication path, and aligning an end (4) of the optic sieve (1) (or networks of sections of optic sieves) with a light source (2) (

The present invention relates to a method for optically marking an elongated indication path. This method is comprised of supporting an optic sieve (1) along an exposed indication path, and aligning an end (4) of the optic sieve (1) (or networks of sections of optic sieves) with a light source (2) (or light socket harnessing the collective outputs of a plurality of light sources). The optic sieve (1) in the context of the present invention is characterised by having at least one side emitting optic fiber within a flexible semi opaque holographically grooved sleeve. The present invention also relates to devices having optically marked elongated indication paths according to the method of the present invention. alve member (21) and valve seat (22) to permit air flow into and out of the device (10) for adjustment of the volume of air within the device (10) and locking means (26, 47) for maintaining the valve (15) fully open when it is desired to fill or empty the device (10) with air. ng a dowel slot; and a seat connected to the main frame, the seat comprising: a rod pivotally connecting the seat to the main frame; an upper surface; and a stacking lip that extends away from the upper surface of the seat in an orthogonal direction relative thereto to form a substantially right angle shape, the stacking lip including a notch extending substantially across an entire width of the seat, the stacking lip having a vertical height wherein the notch extends beyond an outer boundary defined by of the rear face of either the front and back legs when the chair is in a folded position. 10. The folding chair according to claim 9, wherein the seat further comprises a pair of dowel pins that slidingly engage the dowel slots of the inner side faces of the back legs. 11. The folding chair according to claim 9, wherein the notch is configured to receive a lower back portion of a seat of another folding chair and wherein the notch permits stacking of a plurality of chairs. 12. The folding chair according to claim 9, wherein the notch engages the upper crosspiece of the support frame when the chair is in an open position. 13. The folding chair according to claim 9, wherein the seat further comprises: a lower surface; and a pair of stacking guides extending away from the lower surface of the seat, wherein the stacking guides engage the inner side faces of the back legs when the chair is in the folded position to prevent the chair from sliding off another chair upon which the chair is stacked, and wherein the notch of the stacking lip prevents the chair in the folded position from sliding forward and backward relative to the other chair upon which the chair is stacked. 14. The folding chair according to claim 13, wherein the stacking guides engage the intermediate crosspiece of the main frame when the chair is in an open position to prevent the seat from sliding relative to the main frame while the chair is in use. 15. The folding chair according to claim 13, wherein the seat further comprises a pair of receiving grooves positioned on the lower surface of the seat, the receiving grooves engage the intermediate crosspiece of the main frame when the seat is in the folded position. 16. The folding chair according to claim 9, wherein the chair is formed of an injection molded plastic.