US4047257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Life saving apparatus
Assignee: Lawrence Peska Associates Inc
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Filing: 1976-05-21
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Granted: 1977-09-13
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Expires: 1996-05-21
Abstract
Abstract A lifesaving apparatus for use, for example, in rescuing a person who has fallen through the ice, includes a series of slats, flexibly connected to one another, forming a long flexible mat. One end of the mat is provided with an anchoring device, used to fix the end of the mat to the shore. The other end is provided with a flotation device, which may also serve as a core on which to roll the mat. The slats serve to spread the weight of the rescuer over the ice and the entire mat serves as a path to lead the endangered person to safety.
Inventors
- 👤 Walter W. Bondarchuk, Sr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:44
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/32; E; E01; E01C; E01C9/00; E01C9/08; E01D; E01D15/00; E01D15/14; E01D15/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
80 words
A life saving device comprising a flexible elongated mat, which mat includes a plurality of rigid slats extending crosswise of the mat, each slat being affixed to the adjacent slats by means of at least one flexible member, which mat is terminated at its first end by a flotational member and at its second end by an anchoring member, the flotational member including a cylinder of rigid foamed polymer affixed to the mat in an orientation parallel to the slats.
Claim 2
Dependent Claim
80 words
A life saving device comprising a flexible elongated mat, which mat includes a plurality of rigid slats extending crosswise of the mat, each slat being affixed to the adjacent slats by means of at least one flexible member, which mat is terminated at its first end by a flotational member and at its second end by an anchoring member, the flotational member including a cylinder of rigid foamed polymer affixed to the mat in an orientation parallel to the slats.
Claim 3
Dependent Claim
13 words
A device of claim 1 in which the slats consist essentially of wood.
Claim 4
Dependent Claim
12 words
A device of claim 2 in which the flexible member is wire.
Claim 5
Dependent Claim
25 words
A device of claim 1 in which the cylinder is provided with annular grooves whereby finger grips are provided for the convenience of the user.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |