US4957446A — Lockout device for electrically operated equipmen…

Claim 1

Independent Claim 222 words

A lockout device for preventing the use of electrically operated equipment having a power cord with an electrical plug and at least two prongs, each of which are attached to and extending from the plug and terminating in an exposed end, each prong having a hole spaced from its exposed end, said device comprising: a housing defining a first passageway, with one end of said passageway terminating in an opening disposed on an end of said housing, the other end of said passageway terminating in an end wall within said housing, said housing defining a second passageway, said second passageway disposed substantially perpendicular to and intersecting said first passageway, said first passageway having a cross-sectional dimension sufficient to accept the prong of the electrical plug, whereby the prong of the electrical plug may be disposed in said first passageway, with the hole in the prong disposed in said second passageway, wherein said second passageway passes through each of said first passageways and said second passageway terminates in a pair of openings on substantially opposite sides of said housing; and a latching means extending through said second passageway and through the hole in the prong so that removal of the prong from said first passageway is prevented, and said latching means having a securing means to prevent its removal from said second passageway.

Claim 2

Dependent Claim 222 words

A lockout device for preventing the use of electrically operated equipment having a power cord with an electrical plug and at least two prongs, each of which are attached to and extending from the plug and terminating in an exposed end, each prong having a hole spaced from its exposed end, said device comprising: a housing defining a first passageway, with one end of said passageway terminating in an opening disposed on an end of said housing, the other end of said passageway terminating in an end wall within said housing, said housing defining a second passageway, said second passageway disposed substantially perpendicular to and intersecting said first passageway, said first passageway having a cross-sectional dimension sufficient to accept the prong of the electrical plug, whereby the prong of the electrical plug may be disposed in said first passageway, with the hole in the prong disposed in said second passageway, wherein said second passageway passes through each of said first passageways and said second passageway terminates in a pair of openings on substantially opposite sides of said housing; and a latching means extending through said second passageway and through the hole in the prong so that removal of the prong from said first passageway is prevented, and said latching means having a securing means to prevent its removal from said second passageway.

Claim 3

Dependent Claim 34 words

The lockout device of claim 1 wherein said housing is formed from a translucent plastic, and said first passageway is dimensioned so as to align the hole of the prong with said second passageway.

Claim 4

Dependent Claim 27 words

The lockout device of claim 1 wherein said housing defines a pair of said first passageways of identical dimensions, disposed parallel to each other within said housing.

Claim 5

Dependent Claim 50 words

The lockout device of claim 1 wherein said housing defines a pair of said first passageways each having a length slightly longer than the length of a prong and a width slightly wider than the width of a prong and a thickness slightly thicker than the thickness of a prong.

Claim 6

Dependent Claim 39 words

The lockout device of claim 1 wherein said second passageway is positioned near the inner end of said first passageway and said second passageway is of cross-sectional dimension substantially equal to the dimension of the holes in the prongs.

Claim 7

Dependent Claim 215 words

A lockout device for preventing the use of electrically operated equipment having a power cord with an electrical plug and at least two prongs, each of which are attached to and extending from the plug and terminating in an exposed end, each prong having a hole spaced from its exposed end, said device comprising: a housing defining a first passageway, with one end of said passageway terminating in an opening disposed on an end of said housing, the other end of said passageway terminating in an end wall within said housing, said housing defining a second passageway, said second passageway disposed substantially perpendicular to and intersecting said first passageway, said first passageway having a cross-sectional dimension sufficient to accept the prong of the electrical plug, whereby the prong of the electrical plug may be disposed in said first passageway with the hole in the prong disposed in said second passageway; and a latching means extending through said second passageway and through the hole in the prong so that removal of the prong from said first passageway is prevented, and said latching means having a securing means to prevent its removal from said second passageway, wherein said latching means comprises a flexible strap member dimensioned to extend through said second passageway and extend beyond said housing.

Claim 8

Dependent Claim 215 words

A lockout device for preventing the use of electrically operated equipment having a power cord with an electrical plug and at least two prongs, each of which are attached to and extending from the plug and terminating in an exposed end, each prong having a hole spaced from its exposed end, said device comprising: a housing defining a first passageway, with one end of said passageway terminating in an opening disposed on an end of said housing, the other end of said passageway terminating in an end wall within said housing, said housing defining a second passageway, said second passageway disposed substantially perpendicular to and intersecting said first passageway, said first passageway having a cross-sectional dimension sufficient to accept the prong of the electrical plug, whereby the prong of the electrical plug may be disposed in said first passageway with the hole in the prong disposed in said second passageway; and a latching means extending through said second passageway and through the hole in the prong so that removal of the prong from said first passageway is prevented, and said latching means having a securing means to prevent its removal from said second passageway, wherein said latching means comprises a flexible strap member dimensioned to extend through said second passageway and extend beyond said housing.

Claim 9

Dependent Claim 25 words

The lockout device of claim 6 wherein said flexible strap member includes a plurality of ratchets at regular intervals over the length of said strap.

Claim 10

Dependent Claim 22 words

The lockout device of claim 6 wherein one end of said strap member includes said securing means for engagement with said ratchets.

Claim 11

Dependent Claim 217 words

A lockout device for preventing the use of electrically operated equipment having a power cord with an electrical plug and at least two prongs each of which is attached to and extending from the plug and terminating in an exposed end, each prong having a hole disposed in its exposed end, said device comprising: a substantially rectangular housing defining two parallel and substantially equally sized passageways, with one end of each of said passageways terminating in an opening disposed on an end of said housing and the other end of said passageways terminating in an endwall, with said passageways having a cross-sectional dimension slightly larger than each of the prongs, said housing further defining a cross passage having a cross-section of substantially equal dimension to that of the prong holes, said cross passage being disposed substantially perpendicular to and intersecting said passageways whereby each prong hole of the electrical plug is disposed in said cross passage when the prongs are inserted in said passageways, flexible strap latching means extending through said cross passage and the prong holes when the prongs are disposed in said passageways, and dimensioned to extend beyond each side of said housing and having a plurality of ratchets at regular intervals for engagement with securing means located on one end of said flexible strap.

Claim 12

Dependent Claim 217 words

A lockout device for preventing the use of electrically operated equipment having a power cord with an electrical plug and at least two prongs each of which is attached to and extending from the plug and terminating in an exposed end, each prong having a hole disposed in its exposed end, said device comprising: a substantially rectangular housing defining two parallel and substantially equally sized passageways, with one end of each of said passageways terminating in an opening disposed on an end of said housing and the other end of said passageways terminating in an endwall, with said passageways having a cross-sectional dimension slightly larger than each of the prongs, said housing further defining a cross passage having a cross-section of substantially equal dimension to that of the prong holes, said cross passage being disposed substantially perpendicular to and intersecting said passageways whereby each prong hole of the electrical plug is disposed in said cross passage when the prongs are inserted in said passageways, flexible strap latching means extending through said cross passage and the prong holes when the prongs are disposed in said passageways, and dimensioned to extend beyond each side of said housing and having a plurality of ratchets at regular intervals for engagement with securing means located on one end of said flexible strap.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1993-09-17	1994-03-19	1994-09-18	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1997-09-17	1998-03-19	1998-09-18	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2001-09-17	2002-03-19	2002-09-18	$7700.00	Window Closed / Lapsed

Lockout device for electrically operated equipment and devices

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