U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Removable double action rope grip

Patent 4542884 Issued on September 24, 1985. Estimated Expiration Date: Icon_subject May 3, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

898318

2148590

2187361

3852943

3876036

Personal safety equipment
Patent #: 3948362
Issued on: 04/06/1976
Inventor: Greest

Safety device for ladder climbers
Patent #: 4071926
Issued on: 02/07/1978
Inventor: Sweet ,   et al.

Cord lock mechanism for venetian blind Patent #: 4180118
Issued on: 12/25/1979
Inventor: Vecchiarelli

Inventor

Application

No. 06/605074 filed on 05/03/1984

US Classes:

254/391, With mechanism for retarding or preventing cable movement or element rotation182/5, Strand-engaging, with descent retarder188/65.1, STRAND254/405, With block for element and portion thereof repositionable for insertion or removal of cable or for exposure of element254/411With guard or guide for maintaining cable on element

Examiners

Primary: Levy, Stuart S.
Assistant: Hail, III, Joseph J.

Attorney, Agent or Firm

International Classes

E04G 21/32 (20060101)
F16G 11/00 (20060101)
F16G 11/04 (20060101)
A47L 3/04 (20060101)
A47L 3/00 (20060101)
A62B 1/14 (20060101)
A62B 35/04 (20060101)
A62B 1/00 (20060101)
A62B 35/00 (20060101)

Abstract

A rope grip which comprises a shell (12) and a plate (16) defining a first gripping surface and a cylinder (20) defining a second gripping surface is disclosed. The two surfaces are in a facing spaced relationship and define a passage (30) for receiving a rope. The cylinder travels in an angular field of motion with respect to the plate which causes a rope of appropriate size to become jammed between the plate and the cylinder depending upon the position of the cylinder. An operating arm (18) is mechanically coupled to the cylinder in order to control its position and accordingly, the distance between the surfaces of the plate and the cylinder.

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