US 6,454,505 B1Granted

Subway rail anchor assembly

AssigneeIllinois Tool Works Inc.

InventorRichard Griffith

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Abstract

An anchor assembly and a method of installing the same so as to secure an object to an underlying substructure comprises an insert member having an internally threaded bore, and an externally threaded headed bolt member for threaded engagement within the threaded bore of the insert member. A through-bore is formed within the object to be secured to the substructure, and the bolt member is inserted into the upper end portion of the through-bore so as to be threadedly engaged with the insert member which is disposed in abutted contact with the undersurface of the object as an assembly when the object is to be secured to a freshly poured concrete substructure. If the object is to be secured to an existing concrete foundation, an anchor assembly comprising the bolt member, a sleeve member, and the insert member is initially assembled, a bore is in effect simultaneously formed within both the object and the concrete foundation so that the bores within such components are coaxially aligned with respect to each other, adhesive is deposited within the bore of the concrete substructure, and the anchor assembly is inserted through the object and into the bore of the substructure such that the insert member is immersed within the adhesive material which is then permitted to harden and set.

Claims23

Dependent claims

An anchor assembly for fixedly but removably securing an object to an underlying substructure, comprising:

an insert member adapted to be fixedly and fully immersed within the underlying substructure, said insert member having an irregular external surface portion for facilitating the fixed retention of said insert member within a hardenable material comprising a portion of the underlying substructure when the hardenable material sets, and having an internally threaded blind bore defined therein and extending axially inwardly from an open end defined within an upper end of said insert member, said upper end of said insert member comprising upper end surface means for engaged contact with a first lower end surface portion of the object when the object is fixedly but removably secured to the underlying substructure such that said engaged contact established between said upper end surface means of said insert member and the first lower end surface portion of the object seals said open upper end of said internally threaded blind bore so as to prevent the ingress of the hardenable material, comprising a portion of the underlying substructure, into said blind bore of said insert member prior to the setting of the hardenable material;
and
a bolt member having an externally threaded shank portion for passage through the object to be secured to the underlying substructure and for threaded engagement with said internally threaded blind bore defined within said insert member, and means for operatively engaging a second upper end surface portion of the object when the object is fixedly but removably secured to the underlying substructure so as to operatively cooperate with said upper end surface means of said insert member whereby said upper end surface means of said insert member and said engaging means of said bolt member operatively engage opposite ends of the object therebetween such that the object is fixedly confined between said engaging means of said bolt member and said upper end surface means of said insert member.

In combination, an object to be fixedly secured to an underlying substructure, and an anchor assembly for fixedly securing said object to the underlying substructure, comprising:

said object, to be secured to the underlying substructure has a throughbore, having a predetermined diametrical extent, defined therein;
an insert member adapted to be fixedly and fully immersed within the underlying substructure, said insert member having an irregular external surface portion for facilitating the fixed retention of said insert member within a hardenable material comprising a portion of the underlying substructure when the hardenable material sets, and having an internally threaded blind bore defined therein and extending axially inwardly from an open end defined within an upper end of said insert member, said upper end of said insert member comprising upper end surface means for engaged contact with a first lower end surface portion of said object when said object is fixedly but removably secured to the underlying substructure such that said engaged contact established between said upper end surface means of said insert member and said first lower end surface portion of said object seals said open upper end of said internally threaded blind bore so as to prevent the ingress of the hardenable material, comprising a portion of the underlying substructure, into said blind bore of said insert member prior to the setting of the hardenable material;
and
a bolt member having an externally threaded shank portion for passage through said object to be secured to the underlying substructure and for threaded engagement with said internally threaded blind bore defined within said insert member, wherein said externally threaded shank portion has a predetermined diametrical extent which is slightly less than said predetermined diametrical extent of said throughbore defined within said object to be secured to the underlying substructure such that said externally threaded shank portion of said bolt member is axially guided and radially confined within said throughbore of said object, and means for operatively engaging a second upper end surface portion of said object when said object is fixedly but removably secured to the underlying substructure so as to operatively cooperate with said upper end surface means of said insert member whereby said upper end surface means of said insert member and said engaging means of said bolt member operatively engage opposite ends of said object therebetween such that said object is fixedly confined between said engaging means of said bolt member and said upper end surface means of said insert member.

1 more element

In combination, an object to be fixedly secured to an underlying substructure, and an anchor assembly for fixedly securing said object to said underlying substructure, comprising:

said underlying substructure;
said object, to be secured to said underlying substructure, having a throughbore, having a predetermined diametrical extent, defined therein;
an insert member adapted to be fixedly and fully immersed within said underlying substructure, said insert member having an irregular external surface portion for facilitating the fixed retention of said insert member within a hardenable material comprising a portion of said underlying substructure when said hardenable material sets, and having an internally threaded blind bore defined therein and extending axially inwardly from an open end defined within an upper end of said insert member, said upper end of said insert member comprising upper end surface means for engaged contact with a first lower end surface portion of said object when said object is fixedly but removably secured to said underlying substructure such that said engaged contact established between said upper end surface means of said insert member and said first lower end surface portion of said object seals said open upper end of said internally threaded blind bore so as to prevent the ingress of said hardenable material, comprising a portion of the underlying substructure, into said blind bore of said insert member prior to the setting of said hardenable material;
and
a bolt member having an externally threaded shank portion for passage through said object to be secured to said underlying substructure and for threaded engagement with said internally threaded blind bore defined within said insert member, wherein said externally threaded shank portion has a predetermined diametrical extent which is slightly less than said predetermined diametrical extent of said through-bore defined within said object to be secured to said underlying substructure such that said externally threaded shank portion of said bolt member is axially guided and radially confined within said through-bore of said object, and means for operatively engaging a second upper end surface portion of said object when said object is fixedly but removably secured to said underlying substructure so as to operatively cooperate with said upper end surface means of said insert member whereby said upper end surface means of said insert member and said engaging means of said bolt member operatively engage opposite ends of said object therebetween such that said object is fixedly confined between said engaging means of said bolt member and said upper end surface means of said insert member.

2 more elements

A method of securing an object to an underlying substructure, comprising the steps of:

forming a through-bore within said object to be secured to said underlying substructure wherein said through-bore has a predetermined diametrical extent, a lower end portion, and an upper end portion;
inserting a bolt member, having an externally threaded shank portion having a predetermined diametrical extent which is just slightly less than said predetermined diametrical extent of said object throughbore, into said upper end portion of said through-bore formed within said object to be secured to said underlying substructure such that said threaded shank portion of said bolt member is axially guided and radially confined within said through-bore of said object;
threadedly engaging a lower end portion of said externally threaded shank portion of said bolt member into an internally threaded bore defined within an insert member such that an upper portion of said bolt member engages an upper surface portion of said object while an upper surface portion of said insert member sealingly engages a lower surface portion of said object;
inserting said insert member within a freshly poured batch of concrete material, which will form said underlying substructure when said freshly poured concrete material hardens and sets, such that said insert member is fully immersed within said freshly poured batch of concrete material wherein said sealed engagement defined between said upper surface portion of said insert member and said lower surface portion of said object prevents the ingress of said freshly poured batch of concrete material into said internally threaded bore defined within said insert member;
and
permitting said freshly poured batch of concrete material to harden and set so as to form said underlying substructure within which said insert member is firmly secured so as to in turn fixedly mount said object upon said underlying substructure.

3 more elements

A method of securing an object to an existing underlying concrete substructure, comprising the steps of:

inserting an axially extending externally threaded shank portion of a headed bolt member into an upper end portion of a tubular sleeve member;
threadedly engaging a lower end portion of said externally threaded shank portion of said headed bolt member within an internally threaded bore defined within an insert member such that said headed bolt member, said tubular sleeve member, and said insert member form an anchor assembly;
placing an object, to be secured to an existing underlying concrete substructure, at a predetermined position upon an upper surface portion of said underlying concrete substructure;
forming a through-bore within said object to be secured to said existing underlying concrete substructure while said object to be secured to said existing underlying concrete substructure is maintained at said predetermined position upon said upper surface portion of said underlying concrete substructure and effectively continuing the formation of said through-bore within said object to be secured to said existing underlying concrete substructure by forming a bore within said existing underlying concrete substructure such that said through-bore formed within said object and said bore formed within said existing underlying concrete substructure are coaxially aligned with respect to each other;
partially filling said bore formed within said existing underlying concrete substructure with an adhesive material;
inserting said anchor assembly through said through-bore defined within said object and into said bore defined within said existing underlying concrete substructure such that said insert member is immersed within said adhesive material;
and
permitting said adhesive material to harden and set so as to fixedly secure said insert member within said adhesive material and said existing underlying concrete substructure so as to in turn fixedly mount said object upon said existing underlying concrete substructure by means of said anchor assembly.

5 more elements

Dependencies are inferred from the claim text.