Escape slides

• US 4,378,861 A
• Filed: 10/17/1980
• Issued: 04/05/1983
• Est. Priority Date: 10/19/1979
• Status: Expired due to Term

• Current Assignee: RFD Inflatables Limited
• Original Assignee: RFD Inflatables Limited
• Inventors: Edwards, David V., Burrough, Philip M.
• Primary Examiner(s): Machado, Reinaldo P.
• Application Number:
  US06/198,222
• Time in Patent Office: 900 Days
• Field of Search: 182/48, 182/49, 193/25 R, 193/25 C, 66/193, 244/DIG. 2, 244/137 P
• US Class Current: 182/48
• CPC Class Codes: B64D 25/14 Inflatable escape chutes

Abstract

An escape slide arranged to provide an inclined descent path for evacuees, the slide includes a support structure and a slideway supported thereby, the slideway includes a sheet of flexible material provided with holes through which water drains. The sheet preferably comprises a warp knitted fabric net.

Claims

1. An escape slide arranged to provide an inclined descent path for evacuees, the slide comprising support structure and a slideway supported thereby, the slideway comprising a first sheet of flexible material provided with holes through which water drains and a second sheet of a woven fabric arranged in such spaced relation beneath the first sheet as to permit drainage of water through the first sheet while serving as a support therefor when the first sheet distends under load during use of the slide by evacuees.

2. A slide according to claim 1 wherein the first sheet comprises a textile fabric.

3. A slide according to claim 2, wherein the fabric is a warp knitted fabric.

4. A slide according to claim 3 wherein the warp knitted fabric is knitted from a high tenacity synthetic continuous filament yarn of spinner'"'"'s twist.

5. A slide according to claim 3, wherein the warp knitted fabric is so arranged in the slide that the warp threads extend along the length of the slide.

6. A slide according to claim 5, wherein the warp knitted fabric is in the form of a net.

7. A slide according to claim 6, wherein the net is formed by warp knitting looping yarns with inlaying yarns to form warp threads and traversing the in-laying yarns to other warp threads to form the weft threads.

8. A slide according to claim 2, wherein the woven fabric is woven from continuous filament yarns.

9. A slide according to claim 8, wherein each of the warp and weft threads comprises a plurality of continuous untwisted filaments.

10. A slide according to claim 9, wherein the number of filaments in the weft thread is greater than the number of filaments in the warp thread.

11. A slide according to claim 10, wherein the woven fabric is so arranged in the slide that the warp threads extend along the length of the slide.

12. A slide according to claim 2, wherein the support structure comprises support walls and wherein the slideway fabrics are joined along their longitudinal edges together and to opposing faces of the support walls.

13. A slide according to claim 12, wherein each support wall is formed by a plurality of superposed inflatable tubes extending along the length of the slide and wherein the slideway fabrics are secured at their longitudinal edges to a pair of opposing wall tubes next below the uppermost pair of opposing wall tubes so that the latter serve as guides for evacuees using the slide.