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US 6,672,428 B2Granted
Personal descent apparatus
OwnerBoris Gelmaninventor
Life of this patent
Estimating the term…
Abstract
A small and easily portable apparatus for safely descending from a high elevation, comprising a drum rotatably mounted on a mounting frame; a body securing device for securing the mounting frame to the body of a user; and a line wound around the drum, having an end for attachment to a fixed object at the high elevation; such that the user may attach the line to a fixed object and safely descend from the high elevation.
Claims22
A portable, lightweight apparatus for use by a user for safely descending from a high elevation, said apparatus comprising:
- (a) a drum rotatably mounted on a mounting frame;
- (b) a body securing device for securing said mounting frame to the body of the user;
- and
- (c) a line wound around the drum, said line having a first end attached to the drum and a second end for attachment to any fixed object at the high elevation;
- such that the user may conveniently use the device to safely descend from the high elevation by attaching the mounting frame to the user's body and the second end of the line to the fixed object at the high elevation;
- and
- (d) a descent control device comprising an oil damper including a shaft coaxially coupled to said drum wherein drum rotation causes said oil damper to pump oil through a channel against resistance, said resistance exerting a retarding force against said rotation of said drum thereby controlling the rate of descent of the user.
4 more elements
An apparatus for use by a user for safely descending from a high elevation, said apparatus comprising:
- (a) a drum rotatably mounted on a mounting frame;
- (b) a body securing device for securing said mounting frame to the body of the user;
- (c) a line wound around the drum, said line having a first end attached to the drum and a second end for attachment to a fixed object at the high elevation;
- and
- (d) a generator driven by rotation of the drum for producing an electric current to power an indicator signal such that the user may conveniently use the device to safely descend from the high elevation by attaching the mounting frame to the user's body and the second end of the line to the fixed object at the high elevation.
2 more elements
Dependencies are inferred from the claim text.