# US 4,395,067 A · Lifting assembly

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 4,395,067 A
- Document ID: US4395067A
- Status: Granted
- Kind: A
- Application number: 06/277,446
- Filed: 1981-06-25
- Granted: 1983-07-26
- Earliest claimed: 1980-06-26
- Assignees: Spanset Inter AG
- Inventors: Peter D. L. Robin
- Web page: https://patentgrep.com/patent/US4395067A

## CPC

- B66C 1/18: Band-type slings
- B66C: CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES ({specially adapted for lifting invalids A61G7/10;} rope, cable, or chain winding mechanisms, braking or detent devices therefor B66D; specially adapted for nuclear reactors G21)

## Abstract

A lifting assembly comprises a cloverleaf lifting sling in combination with a base of weldable plastics sheet material, the base having welds serving to hold the sling in its cloverleaf configuration.

## Claims

### Claim 1

A lifting assembly, comprising: a cloverleaf lifting sling in combination with a base of plastics sheet material, said sling having a central portion and four loop portions forming a cloverleaf configuration, said base serving to hold said central portion to maintain the sling in its cloverleaf configuration, and having peripheral sleeve means for storing said loop portions of the sling.

### Claim 2 (depends on 1)

An assembly as claimed in claim 1, wherein the base comprises two sheets of weldable plastics material between which said central portion of the sling is trapped by welds uniting the sheets.

### Claim 3 (depends on 1)

An assembly as claimed in claim 1 wherein said base is of weldable material and has welds for holding said central portion.

### Claim 4 (depends on 2, 3)

An assembly as claimed in claim 3 or 2, wherein the sling has an outer surface of weldable plastics material and at least some of the welds unite the base with the sling.

### Claim 5 (depends on 4)

An assembly as claimed in claim 4, wherein the welds define inner edges of said peripheral sleeve means.

### Claim 6 (depends on 5)

An assembly as claimed in claim 5, wherein the outer edges of the peripheral sleeve means are closed to contain the loop portions.

### Claim 7 (depends on 6)

An assembly as claimed in claim 6, wherein the peripheral sleeve means comprises sleeves extending along two opposed edges of the base, and each sleeve receives two loop portions extending from opposite ends of the sleeve and overlapping each other.

### Claim 8 (depends on 1)

An assembly as claimed in claim 1, wherein the base is a single sheet having flaps turned-over to form said sleeve means.

### Claim 9

A lifting assembly comprising: a cloverleaf lifting sling in combination with a base of weldable plastics sheet material, said sling having a central portion and four loop portions forming a cloverleaf configuration; said base having welds serving to maintain the sling in its cloverleaf configuration and having peripheral sleeve formations for receiving said loop portions; the sling having an outer surface of weldable plastics material, and at least some of the welds uniting said base with the sling; the welds defining inner edges of said peripheral sleeve formations; the outer edges of said peripheral formations being closed to contain said loop portions; and said peripheral formations extending along two opposed edges of said base, each such formation receiving two loop portions extending from opposite ends of the formation and overlapping each other.

### Claim 10 (depends on 9)

An assembly as claimed in claim 9 wherein said base comprises two sheets of weldable plastics material between which said central portion of the sling is trapped by welds uniting the sheets.