US4624089A — Tie anchor for reinforced sandwich panels

Claim 1

Independent Claim 336 words

A tie anchor for cast sandwich panels and the like, particularly sandwich panels of the type which comprise two spaced panels of steel-rod-reinforced cast concrete or comparable reinforced building wall material and an intermediate insulating layer or insulating air space, wherein one of the two panels is a carrier panel and the other one is a face panel and the tie anchor is designed to support the face panel on the carrier panel by having at least one end portion embedded in each panel, as the latter are cast in succession, the tie anchor comprising: a substantially flat tie anchor body having a longitudinal axis; at least one convergingly tapered end portion defined by each axial end of the tie anchor body, at least one of said axial ends defining two transversely spaced, convergingly tapered end portions; and at least one positioning bore in each of said tapered end portions, for the insertion therethrough of a tie anchor positioning rod; and wherein the tapered end portion, or end portions, respectively, on one of the two axial ends of the tie anchor body form a hook portion around a half-loop bend, at a bending line which extends transversely to the longitudinal axis of the tie anchor body; each hook portion includes a bent hook portion extending at a distance from an unbent hook portion which is aligned with the tie anchor body, so that the hook portion, or portions, respectively, are engageable over a reinforcing rod in one of said two panels; and each hook-portion-forming tapered end portion has at least one pair of aligned positioning bores in its bend and unbent hook portions, for the insertion of a positioning rod through said pair of aligned bores, which positioning rod locks the tie anchor to the reinforcing rod by engaging the side of the reinforcing rod opposite the side engaged by the hook portion, or hook portions, respectively, thereby positioning and orienting the tie anchor in relation to the reinforcing rod during casting of the first panel.

Claim 2

Dependent Claim 336 words

A tie anchor for cast sandwich panels and the like, particularly sandwich panels of the type which comprise two spaced panels of steel-rod-reinforced cast concrete or comparable reinforced building wall material and an intermediate insulating layer or insulating air space, wherein one of the two panels is a carrier panel and the other one is a face panel and the tie anchor is designed to support the face panel on the carrier panel by having at least one end portion embedded in each panel, as the latter are cast in succession, the tie anchor comprising: a substantially flat tie anchor body having a longitudinal axis; at least one convergingly tapered end portion defined by each axial end of the tie anchor body, at least one of said axial ends defining two transversely spaced, convergingly tapered end portions; and at least one positioning bore in each of said tapered end portions, for the insertion therethrough of a tie anchor positioning rod; and wherein the tapered end portion, or end portions, respectively, on one of the two axial ends of the tie anchor body form a hook portion around a half-loop bend, at a bending line which extends transversely to the longitudinal axis of the tie anchor body; each hook portion includes a bent hook portion extending at a distance from an unbent hook portion which is aligned with the tie anchor body, so that the hook portion, or portions, respectively, are engageable over a reinforcing rod in one of said two panels; and each hook-portion-forming tapered end portion has at least one pair of aligned positioning bores in its bend and unbent hook portions, for the insertion of a positioning rod through said pair of aligned bores, which positioning rod locks the tie anchor to the reinforcing rod by engaging the side of the reinforcing rod opposite the side engaged by the hook portion, or hook portions, respectively, thereby positioning and orienting the tie anchor in relation to the reinforcing rod during casting of the first panel.

Claim 3

Dependent Claim 86 words

A tie anchor as defined in claim 1, wherein the developed outline of the tie anchor body is in part defined by two longitudinal edges and a central convergingly tapered end portion on one of its axial ends; and the developed outline of the tie anchor body is further defined by two laterally spaced convergingly tapered end portions on the other one of its axial ends, the extremities of said laterally spaced tapered end portions being located near the longitudinal edges of the tie anchor body.

Claim 4

Dependent Claim 104 words

A tie anchor as defined in claim 2, wherein the longitudinal edges of the developed tie anchor body are parallel edges; said central convergingly tapered end portion is an A-shaped end portion, and said laterally spaced tapered end portions define between them a V-shaped central recess; the A-shaped end portion forms a complimentary match with the V-shaped recess, so that the end portion of a first one of two identical developed tie anchors fits into the recess of the second developed tie anchor substantially without a gap; and the developed outline of the tie anchor body is symmetrical with respect to its longitudinal axis.

Claim 5

Dependent Claim 89 words

A tie anchor as defined in claim 3, wherein the width at the base of said A-shaped end portion of the developed tie anchor body is narrower than the width defined by its two longitudinal edges, the outline of the developed tie anchor body further including corresponding lateral shoulders between the base of the A-shaped end portion and said longitudinal edges; and the laterally spaced tapered end portions on the opposite axial end of the developed tie anchor body have truncated extremities forming a complimentary match with said shoulders.

Claim 6

Dependent Claim 44 words

A tie anchor as defined in any one of claims 2 through 4, wherein two hook portions are formed from said two laterally spaced tapered end portions and transversely aligned with each other, so as to be engageable over a single straight reinforcing rod.

Claim 7

Dependent Claim 27 words

A tie anchor as defined in any one of claims 2 through 4, wherein a single hook portion is formed from said central convergingly tapered end portion.

Claim 8

Dependent Claim 116 words

A tie anchor as defined in claim 1, wherein the outline of the developed tie anchor body is defined by two longitudinal edges and by two laterally spaced convergingly tapered end portions on both axial ends of the developed tie anchor body; the extremities of said laterally spaced tapered end portions are located near said longitudinal edges, forming between them a V-shaped central recess on both axial ends of the developed tie anchor body; and two hook portions are formed from two laterally spaced tapered end portions on one axial end of the tie anchor body, said hook portions being transversely aligned with each other, so as to be engageable over a single straight reinforcing rod.

Claim 9

Dependent Claim 36 words

A tie anchor as defined in claim 7, wherein the developed outline of the tie anchor body is symmetrical with respect to both its longitudinal axis and an axis which is perpendicular to its longitudinal axis.

Claim 10

Dependent Claim 88 words

A tie anchor as defined in claim 1, wherein the hook portion, or hook portions, respectively, include a substantially straight end at the bent hook portion defining a small acute angle with the unbent hook portion and the aligned tie anchor body, so as to form an divergingly tapered pocket; and a plurality of identical tie anchors are stackable by engaging the hook portion, or portions, of one tie anchor into the tapered pocket, or pockets, respectively, formed by the hook portion, or portions, of another tie anchor.

Claim 11

Dependent Claim 20 words

A tie anchor as defined in claim 1, wherein the tie anchor body includes at least one longitudinal stiffening bead.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1989-11-24	1990-05-26	1990-11-25	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1993-11-24	1994-05-26	1994-11-25	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1997-11-24	1998-05-26	1998-11-25	$7700.00	Window Closed / Lapsed

Tie anchor for reinforced sandwich panels

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