# US 9,867,745 B2 · Emergency lift and transport system

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- Number: US 9,867,745 B2
- Document ID: US9867745B2
- Status: Granted
- Kind: B2
- Application number: 15/442,967
- Filed: 2017-02-27
- Published: 2017-07-13
- Granted: 2018-01-16
- Earliest claimed: 2015-06-16
- Applicants: Robert S Krolick; Sanford Shapiro; Duane Carling
- Inventors: Robert S Krolick; Sanford Shapiro; Duane Carling
- Web page: https://patentgrep.com/patent/US9867745B2

## CPC

- A61G 1/04: Parts, details or accessories, e.g. head-, foot- or like rests specially adapted for stretchers
- A61G 1/003: with facilities for picking up patients or disabled persons, e.g. break-away type or using endless belts
- A61G 1/013: foldable or collapsible (A61G1/017 takes precedence)
- A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00)

## Abstract

A lift system 100 may comprise two sets of two pistons with each set of pistons attached to an upper cross bar 210 and a lower cross bar 275, with the lower cross bar having distal ends comprising distal insertion areas 276 with the distal insertion areas passing through a first void 241 defined within a wheelie bar 240 and the distal insertion areas 276 reaching further to move a wedge bar 270. To lift a patient from a lowered position, a piston moves a lower cross bar 275 which in turn moves a wedge bar 270 into a wedge 280, causing the lower cross bar to break out of plane with a top bar 205. The use of two wheelie gears 220 ensures that the lift remains horizontal even if piston forces are not uniform. The use of four top bars 205 allows for folded storage.

## Claims

### Claim 1

A lift (100) comprising:
a) a first set of two top bars and a second set of two top bars, with each top bar (205) in fixed attachment to a wedge (280) and the first set of top bars pivotally attached to a first wheelie gear (220), the first wheelie gear attached to two wheelie bars (240), each wheelie bar comprising a longitudinal body (245) with the longitudinal body defining a first longitudinal void (241) the first longitudinal void of the wheelie bar retaining a lower cross bar (275), allowing the lower cross bar to slide within the first longitudinal void of the wheelie bar;
b) a wedge bar (270) attached to a distal end of the lower cross bar, the wedge bar comprising a first end having a cambered edge (271).

### Claim 2 (depends on 1)

The lift of claim 1 further comprising at least one piston attached to the lower cross bar and an upper cross bar (210).

### Claim 3 (depends on 2)

The lift of claim 2 wherein the wedge comprises an angled edge (281), the angled edge comporting to the cambered edge of the wedge bar.

### Claim 4 (depends on 3)

The lift of claim 3 further comprising a cylinder rod clevis (267) attached to the lower cross bar and the piston.

### Claim 5 (depends on 4)

The lift of claim 4 further comprising a cylinder (260) attached to the piston.

### Claim 6 (depends on 5)

The lift of claim 5 wherein the piston is attached to an upper cross bar (210).

### Claim 7 (depends on 6)

The lift of claim 6 wherein the second set of top bars are pivotally attached to a second wheelie gear and the second wheelie gear is in geared attachment to the first wheelie gear.

### Claim 8 (depends on 7)

The lift of claim 7 wherein a wheelie bar stiffener (451) is attached to each set of wheelie bars.

### Claim 9 (depends on 8)

The lift of claim 8 with four pistons, with each piston attached to a respective lower cross bar and upper cross bar.