US 5,562,377 A · Anchor sleeve and bolt assembly

Abstract

An anchor sleeve and bolt assembly adapted to chemically fasten a fixture or other object having a mounting hole to a masonry body. The assembly compresses a bolt provided with a head engageable by a torque tool and a shank extending from the head, an anchor sleeve threadably received on the shank and extending therefrom to define a void between the end of the shank and the end of the sleeve, and a deformable collar interposed between the head of the bolt and the sleeve. To install the assembly, it is inserted through the fixture mounting hole into a hole drilled in the masonry body whose depth is such that the bolt head then lies adjacent the fixture. Deposited in the drilled hole is a charge of an uncured flowable bonding agent which when the assembly is inserted therein, then spreads into the space between the sleeve and the bank of the drilled hole whereby when the agent is cured and hardened, the sleeve is then chemically anchored in the hole. Should further tightening be required, the bolt is turned by the tool to deform the collar and advance the shank into the void, thereby causing the head of the bolt to press the fixture tightly against the masonry body.

Claims20

Dependent claims

An anchor sleeve and bolt assembly for chemically fastening a fixture or other object having a mounting hole to a masonry body, said assembly being insertable through the mounting hole into a hole drilled in the masonry body, the drilled hole having a bank, said assembly comprising:

A. a bolt having a head and a shank extending therefrom, said head being engageable by a torque tool;
B. an anchor sleeve threadably received on the shank and extending therefrom to define a void between the end of the shank and the end of the sleeve;
and
C. a deformable collar mounted on the shank interposed between the head of the bolt and the sleeve, said sleeve and said collar having dimensions which render the assembly insertable in toto through said fixture mounting hole into said drilled hole, deformation of the collar permitting the bolt to advance relative to the sleeve whereby when the hole is drilled into the masonry body to accept the assembly, and an uncured flowable bonding agent is then deposited in the hole after which the assembly in toto is inserted therein to cause the agent to rise between the sleeve and the bank of the hole, the agent which thereafter causes the fixture to become fastened to the masonry by the assembly, and should further tightening be desirable, the bolt is then turnable by the tool to deform the collar and thereby advance the shank into the void, the bolt then pressing the fixture more tightly against the masonry body, said sleeve and said collar received on the shank having a form effectively shielding said shank from said uncured agent whereby said agent makes no contact with said shank and the shank is free to turn.

1 more element

A method for fastening a fixture or other object having a mounting hole to a masonry body by means of a non-expandable type anchor sleeve and bolt assembly that includes a bolt provided with a head and a shank extending therefrom and a sleeve threadably received on the shank which effectively shields the shank of the bolt from a bonding agent, comprising the steps of:

A. placing the fixture on the masonry body at a desired site thereon at which the fixture is to be fastened to the body;
B. drilling a hole in the body through said mounting hole having a depth sufficient to accept said assembly to produce a drilled hole having a bank;
C. depositing a charge of an uncured bonding agent in said drilled hole;
and
D. inserting said non-expandable type assembly through said mounting hole into said drilled hole so that the head of the bolt then lies adjacent the fixture to cause said agent to spread into the space between said sleeve and the bank of the drilled hole, said sleeve effectively shielding the shank from said bonding agent whereby when the agent is cured, the sleeve is then chemically anchored in the hole and the bolt whose head lies adjacent the fixture acts to fasten the fixture to the masonry body.

2 more elements

Dependencies are inferred from the claim text.

Anchor sleeve and bolt assembly

Life of this patent

Anchor sleeve and bolt assembly

Life of this patent

Abstract

Claims20