US3447175A - Inflatable body-attachments for marine lifesaving - Google Patents

Inflatable body-attachments for marine lifesaving Download PDF

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Publication number
US3447175A
US3447175A US693491A US3447175DA US3447175A US 3447175 A US3447175 A US 3447175A US 693491 A US693491 A US 693491A US 3447175D A US3447175D A US 3447175DA US 3447175 A US3447175 A US 3447175A
Authority
US
United States
Prior art keywords
aperture
envelope
neck
attachments
appliance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US693491A
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English (en)
Inventor
Stuart Sullivan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Frankenstein Group Ltd
Original Assignee
Frankenstein Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Frankenstein Group Ltd filed Critical Frankenstein Group Ltd
Application granted granted Critical
Publication of US3447175A publication Critical patent/US3447175A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00—Life-saving in water
    • B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
    • B63C9/11—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses
    • B63C9/125—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses having gas-filled compartments
    • B63C9/1255—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses having gas-filled compartments inflatable

Definitions

  • An inflatable lifejacket comprised of two similar superimposed panels of flexible material, formed to present a keyhole shaped aperture for the head of a wearer and flexible means attached to one panel to decrease the effective size of the aperture automatically upon inflation of the life jacket.
  • This invention relates to inbatable body-attachments for marine lifesaving, with particular reference to that type of appliance which comprises two similar superimposed panels of a flexible impermeable material united at their inner and outer peripheries to provide an unitary envelope with an aperture near one end for the reception of the wearers neck, such envelope when inflated providing a main buoyancy chamber adapted to overlie the upper part of the chest when the appliance is correctly positioned and a secondary buoyancy chamber or headrest at the sides of, and behind, the neck aperture.
  • the neck aperture is of keyhole shape to allow the jacket to be pulled over the head before inflation, subsequent distention of those parts of the envelope which define the narrow portion of the envelope resisting their separation and causing the wider part of the aperture closely to confine the wearers neck.
  • the object of the present invention is to provide simple means whereby the risk aforesaid is eliminated independently of the act of securing the appliance around the waist of the wearer.
  • each of those parts of the envelope which define the narrow portion of such aperture has anchored thereto a flexible member which passes through a loop on the opposing part to a second anchorage on the lower part of the main buoyancy chamber, the inflation of the latter being arranged to tension the two flexible members and hence mechanically to close the narrow portion of the neck aperture.
  • FIG. 1 is a plan view of one form of lifejacket embodying the present invention and shown before inflation, whilst FIG. 2 is a plan of the same jacket in inflated condition.
  • the envelope of the one-piece lifejacket illustrated is produced in known manner by marginally unitting two similar apertured panels A of rubberized fabric to provide a main buoyancy chamber B intended to overlie the wearers chest and a secondary buoyancy chamber B around the neck aperture of the appliance.
  • the neck aperture aforesaid is of keyhole shape with a narrow or slot portion -E approximately equal in length to the diameter of its wide or circular portion E the overall length of the aperture being such that the uninflated appliance can readily be pulled over the wearers head prior to location upon his body by means of waistencircling tapes F connected to the lower corners of the main buoyancy chamber B Adjacent each of the corners formed where the circular portion E of the neck aperture joins the slot portion E thereof, one panel A of the envelope is reinforced by a cemented fabric patch G to which is sewn a loop H of nylon tape and one end of a suitable length I of the same material.
  • Each tape I has its free end threaded through the loop H at the opposite side of the apertures narrow part E and brought lengthwise of the envelope to a second anchorage patch J near the lower end of the main buoyancy chamber B
  • the patch I may be one to which the adjacent waisttape F is connected, or alternatively both of the threaded tapes I may be secured to a common anchorage on the medial line of the panel A.
  • the length of tape I left below each loop H must be less than the distance from the latter to the lower anchorage J of such tape; in other words, the attachment of the lower ends of the tapes I is effected whilst the envelope is longitudinally deformed as shown in FIG. 1.
  • the nylon tapes I in no Way hamper the pulling of the uninflated jacket over the wearers head, since they run freely through their loops H when the neck aperture is extended laterally and merely cause the lower part of the main buoyancy chamber B to be further drawn up.
  • a lifesaving appliance comprising two similar superimposed panels of flexible impermeable material each with an eccentric neck-receiving aperture therein and united at their inner and outer perpheries to provide an inflatable envelope with front and rear buoyancy chambers, means for inflating said envelope said neck-receiving aperture being of keyhole shape with its narrow portion extending medially of said front chamber, two loops attached to one of said panels at opposite sides of said narrow aperture portion, and two flexible restraining members attached to the same panel, respectively adjacent the attachment points of said loops and connecting such points to the further end of said front chamber, such restraining members respectively passing through the loops at the sides of said narrow aperture portion remote from their own attachment points and being of such lengths as to be tensioned on inflation of said envelope to thereby automatically constrict said narrow aperture portion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
US693491A 1967-01-05 1967-12-26 Inflatable body-attachments for marine lifesaving Expired - Lifetime US3447175A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB702/67A GB1152631A (en) 1967-01-05 1967-01-05 Improvements in or relating to Inflatable-Attachments for Marine Lifesaving

Publications (1)

Publication Number Publication Date
US3447175A true US3447175A (en) 1969-06-03

Family

ID=9709055

Family Applications (1)

Application Number Title Priority Date Filing Date
US693491A Expired - Lifetime US3447175A (en) 1967-01-05 1967-12-26 Inflatable body-attachments for marine lifesaving

Country Status (5)

Country Link
US (1) US3447175A (de)
DE (1) DE1531676A1 (de)
ES (1) ES348937A1 (de)
FR (1) FR1578761A (de)
GB (1) GB1152631A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272857A (en) * 1977-09-01 1981-06-16 Beaufort Air-Sea Equipment Ltd. Lifejacket
US10266243B2 (en) * 2017-03-23 2019-04-23 Goodrich Corporation Floatation device without pressurized container

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2480255B (en) * 2010-05-10 2015-12-23 Survitec Service & Distrib Ltd A lifejacket with an integral chin support

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784426A (en) * 1953-07-07 1957-03-12 Garrett Corp Life-saving flotation device
US3068500A (en) * 1960-10-07 1962-12-18 Bernard R Silverman Life vest preserver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784426A (en) * 1953-07-07 1957-03-12 Garrett Corp Life-saving flotation device
US3068500A (en) * 1960-10-07 1962-12-18 Bernard R Silverman Life vest preserver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272857A (en) * 1977-09-01 1981-06-16 Beaufort Air-Sea Equipment Ltd. Lifejacket
US10266243B2 (en) * 2017-03-23 2019-04-23 Goodrich Corporation Floatation device without pressurized container

Also Published As

Publication number Publication date
GB1152631A (en) 1969-05-21
ES348937A1 (es) 1969-03-16
FR1578761A (de) 1969-08-22
DE1531676A1 (de) 1970-01-22

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