US5285603A — Method and apparatus to enshroud large vertical s…

Claim 1

Independent Claim 155 words

Apparatus to temporarily enclose multistory structures comprising a plurality of booms extending outwardly about at least a portion of the structure adjacent the top of the structure, said booms extending beyond the periphery of the structure, a sheave attached at the outboard end of each boom and a vertically extending hoisting cable supported by each sheave to form a plurality of downwardly extending hoisting cables, a plurality of flexible panels, means on the panels to attach the panels together to form a panel assembly and means to attach the panel assembly to the plurality of downwardly extending hoisting cables whereby upon raising the hoisting cables, the panel assembly forms an enclosure about at least a portion of the structure, and stabilization means attached to each boom, said stabilization means extending diagonally away from each boom and attached to the structure at a location spaced horizontally from the boom to which the stabilization means is attached.

Claim 2

Dependent Claim 155 words

Apparatus to temporarily enclose multistory structures comprising a plurality of booms extending outwardly about at least a portion of the structure adjacent the top of the structure, said booms extending beyond the periphery of the structure, a sheave attached at the outboard end of each boom and a vertically extending hoisting cable supported by each sheave to form a plurality of downwardly extending hoisting cables, a plurality of flexible panels, means on the panels to attach the panels together to form a panel assembly and means to attach the panel assembly to the plurality of downwardly extending hoisting cables whereby upon raising the hoisting cables, the panel assembly forms an enclosure about at least a portion of the structure, and stabilization means attached to each boom, said stabilization means extending diagonally away from each boom and attached to the structure at a location spaced horizontally from the boom to which the stabilization means is attached.

Claim 3

Dependent Claim 62 words

The apparatus of claim 1 including a central support attached to each boom, the inward end of each boom and lower end of each central support being temporarily attachable to the structure, and the attachment of the stabilization means to the structure from an adjacent boom being attachable with the attachment of the lower end of the central support to the structure.

Claim 4

Dependent Claim 25 words

The apparatus of claim 2 wherein the stabilization means comprise cables extending from booms to the structure attachments of the central supports of adjacent booms.

Claim 5

Dependent Claim 28 words

The apparatus of claim 1 including a plate, a plurality of sheaves adjustably attachable to the plate whereby the sheaves can be positioned in alignment with corresponding booms.

Claim 6

Dependent Claim 32 words

The apparatus of claim 4 wherein the plate is circular and the sheaves can be angularly positioned circumferentially about the plate to correspond with the angular position of booms on the structure.

Claim 7

Dependent Claim 51 words

The apparatus of claim 1 including a plate, means on said plate to attach tie back cables and tie back cables extending from the booms to said plate, a plurality of support cables extending substantially transversely across the tie back cables and spaced apart from the boom ends to the plate.

Claim 8

Dependent Claim 21 words

The apparatus of claim 6 including flexible panels supported on the tie back cables and support cables and temporarily fastened thereto.

Claim 9

Dependent Claim 11 words

The apparatus of claim 7 wherein the flexible panels are pleated.

Claim 10

Dependent Claim 23 words

The apparatus of claim 8 wherein the plate is circular and at least some of the pleated panels are substantially trapezoidal in shape.

Claim 11

Dependent Claim 67 words

The apparatus of claim 1 wherein each hoisting cable extends downwardly from both sides of each sheave, one of the downwardly extending portions of each cable each passing through a ground sheave anchored adjacent the base of the structure and extending to an attachment ring for the plurality of hoisting cables whereby all the hoisting cables may be simultaneously actuated to raise and lower the panel assembly.

Claim 12

Dependent Claim 20 words

The apparatus of claim 10 wherein the ground sheave is anchored by a ground anchor extending through a thrust block.

Claim 13

Dependent Claim 101 words

As a part of an apparatus to temporarily enclose multi-story structures, an adjustable boom assembly for temporary attachment to multi-story structures having surfaces of compound curvature, said boom assembly comprising a boom, a sleeve on said boom and means to affix the sleeve at selectable locations on said boom, a central support rotatably attached to said sleeve, a pair of trunnions attached to opposite sides of said sleeve, a stabilizer rotatably attached to each trunnion, said stabilizer attachments also including means for rotation in a direction perpendicular to the rotational axis of said trunnions and means to adjustably lengthen said stabilizers.

Claim 14

Dependent Claim 101 words

As a part of an apparatus to temporarily enclose multi-story structures, an adjustable boom assembly for temporary attachment to multi-story structures having surfaces of compound curvature, said boom assembly comprising a boom, a sleeve on said boom and means to affix the sleeve at selectable locations on said boom, a central support rotatably attached to said sleeve, a pair of trunnions attached to opposite sides of said sleeve, a stabilizer rotatably attached to each trunnion, said stabilizer attachments also including means for rotation in a direction perpendicular to the rotational axis of said trunnions and means to adjustably lengthen said stabilizers.

Claim 15

Dependent Claim 27 words

The adjustable boom assembly apparatus of claim 12 including pads rotatably attached to the boom, central support and stabilizers, said pads temporarily attachable to the multi-story structure.

Claim 16

Dependent Claim 30 words

The adjustable boom assembly apparatus of claim 13 including brackets permanently attachable to the multi-story structure, said pads including mechanical fastening means to temporarily attach the pads to the brackets.

Claim 17

Dependent Claim 98 words

As a part of an apparatus to temporarily enclose multi-story structures, an adjustable boom assembly for temporary attachment to multi-story structures, said boom assembly comprising a boom, a sleeve on said boom and means to affix the sleeve to the boom at selectable locations on said boom, a pair of stabilizers and stabilizer attachments attached to either side of said sleeve, said stabilizer attachments including means for two degrees of rotational freedom and telescopic extension means for each stabilizer, attachment pads rotatably connected to said boom and each stabilizer, said attachment pads temporarily attachable to the multi-story structure.

Claim 18

Dependent Claim 98 words

As a part of an apparatus to temporarily enclose multi-story structures, an adjustable boom assembly for temporary attachment to multi-story structures, said boom assembly comprising a boom, a sleeve on said boom and means to affix the sleeve to the boom at selectable locations on said boom, a pair of stabilizers and stabilizer attachments attached to either side of said sleeve, said stabilizer attachments including means for two degrees of rotational freedom and telescopic extension means for each stabilizer, attachment pads rotatably connected to said boom and each stabilizer, said attachment pads temporarily attachable to the multi-story structure.

Claim 19

Dependent Claim 32 words

The adjustable boom assembly apparatus of claim 15 including brackets permanently attachable to the multi-story structure, said attachment pads including mechanical fastening means to temporarily connect the attachment pads to the brackets.

Claim 20

Dependent Claim 95 words

As a part of an apparatus to temporarily enclose multi-story structures, an adjustable attachment for a boom assembly comprising a sleeve, through which a boom may be positioned, and tightening means on the sleeve to selectably position a boom in the sleeve, a pair of trunnions extending to either side of said sleeve, means rotatably engaging each trunnion, and each means rotatably engaging each trunnion also including connection means to a pair of stabilizers, said connection means rotatable about an axis different from the trunnion axis and including means to engage and retain a stabilizer.

Claim 21

Dependent Claim 95 words

As a part of an apparatus to temporarily enclose multi-story structures, an adjustable attachment for a boom assembly comprising a sleeve, through which a boom may be positioned, and tightening means on the sleeve to selectably position a boom in the sleeve, a pair of trunnions extending to either side of said sleeve, means rotatably engaging each trunnion, and each means rotatably engaging each trunnion also including connection means to a pair of stabilizers, said connection means rotatable about an axis different from the trunnion axis and including means to engage and retain a stabilizer.

Claim 22

Dependent Claim 34 words

The adjustable attachment of claim 17 including a connection on said sleeve rotatable about an axis parallel to the trunnion rotational axis, said parallel rotatable axis connection including means to connect a central support.

Claim 23

Dependent Claim 15 words

The adjustable attachment of claim 17 including means to adjust the length of a stabilizer.

Claim 24

Dependent Claim 84 words

As a part of an apparatus to temporarily enclose multistory structures, an adjustable boom assembly for temporary attachment to multi-story structures, said boom assembly comprising a boom, a sleeve on said boom and means to affix the sleeve at selectable locations on said boom, adjustable stabilization means attached to the boom sleeve and extendable diagonally away from the boom for attachment to the structure and a central support attached to the sleeve, said central support rotatable relative to the sleeve about a transverse axis.

Claim 25

Dependent Claim 84 words

As a part of an apparatus to temporarily enclose multistory structures, an adjustable boom assembly for temporary attachment to multi-story structures, said boom assembly comprising a boom, a sleeve on said boom and means to affix the sleeve at selectable locations on said boom, adjustable stabilization means attached to the boom sleeve and extendable diagonally away from the boom for attachment to the structure and a central support attached to the sleeve, said central support rotatable relative to the sleeve about a transverse axis.

Claim 26

Dependent Claim 32 words

The adjustable boom assembly apparatus of claim 20 including a pad for attachment of the central support to the structure, the pad including means to attach stabilization means from adjacent boom assemblies.

Claim 27

Independent Claim 89 words

A method to enshroud large multi-story structures comprising the steps of: attaching a plurality of booms at the top of the structure, the booms extending beyond the periphery of the structure, attaching a plurality of vertical guide cables and hoisting cables to the booms, the guide cables being anchored adjacent the base of the structure and the hoisting cables being attachable to a panel assembly, attaching a panel assembly to the guide cables and hoisting cables, and hoisting the panel assembly up toward the booms to enshroud the structure.

Claim 28

Independent Claim 89 words

A method to enshroud large multi-story structures comprising the steps of: attaching a plurality of booms at the top of the structure, the booms extending beyond the periphery of the structure, attaching a plurality of vertical guide cables and hoisting cables to the booms, the guide cables being anchored adjacent the base of the structure and the hoisting cables being attachable to a panel assembly, attaching a panel assembly to the guide cables and hoisting cables, and hoisting the panel assembly up toward the booms to enshroud the structure.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1997-02-14	1997-08-16	1998-02-15	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2001-02-14	2001-08-16	2002-02-15	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2005-02-14	2005-08-16	2006-02-15	$7700.00	Window Closed / Lapsed

Method and apparatus to enshroud large vertical structures

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