Illinois Tool Works Inc.

The Boler Company

Gilbert Olvera

Michael C Dill

Sigismund G Paul

George M Velan

George G Dewey

Tjong T Lie

Roger D Jable

A method of assembling roof decking to an underlying substrate comprises the steps of providing a pin having a shank portion and a head portion having a predetermined diametrical extent, and a washer, having a central aperture, disposed upon the shank portion of the pin such that the washer has a diametrical extent which is substantially the same as that of the pin head so as to cooperate therewith in guiding the pin when the pin is axially driven through a drive bore of a fastener-driving tool. The inner periphery of the washer central aperture is also provided with a plurality of concave pin-engaging surfaces which are angularly spaced from each other so as to encompass less than one-half of a complete cylinder, but not less than one-third of a complete cylinder, so as to limit potential damage to the shank portion of the pin when the washer is moved axially along the shank portion of the pin as the pin is driven into the substrate by the fastener-driving tool in order to secure the roof decking to the underlying substrate.

Method of assembling roof decking to an underlying substrate

As formed from a predetermined length of carbon steel wire, such as AISI C 1062 steel wire or high-manganese carbon steel wire, in sequential forming, rolling, and austempering steps, a pin for axial, non-rotational penetration into a steel, concrete, or masonry substrate has a head, a tapered shank, a point having a tip, and a transition zone between the tapered shank and the head. The head has an outer diameter at least about 2.6 times greater than the initial diameter of the predetermined length wire. The smaller end of the tapered shank has a diameter about 0.6 times the initial diameter thereof. The larger end of the tapered shank has a diameter about 0.7 times the initial diameter thereof. The point is joined unitarily to the smaller end of the tapered shank and conforms except at the tip, which is rounded, substantially to a tangent ogive, which is tangent to the tapered shank. The transition zone has a tapered portion with a smaller end joined unitarily to the larger end of the tapered shank and with a larger end joined unitarily to the head at a circumferential fillet. The larger end of the tapered portion of the transition zone has a diameter about 1.1 times greater than the initial diameter of the predetermined length wire. The axial length of the transition zone is less than about one half of the axial length of the tapered shank. The austempering step provides the pin with a surface hardness not greater than about Rockwell C 48 and with a core hardness in a range from about Rockwell C 48 to about Rockwell C 58.

Hardened steel pin, pin and washer fastener, washer for fastener, and pin-making method

As formed from a predetermined length of carbon steel wire, such as AISI C 1062 steel wire or high-manganese carbon steel wire, in sequential forming, rolling, and austempering steps, a pin for axial, non-rotational penetration into a steel, concrete, or masonry substrate has a head, a tapered shank, a point having a tip, and a transition zone between the tapered shank and the head. The head has an outer diameter at least about 2.6 times greater than the initial diameter of the predetermined length wire. The smaller end of the tapered shank has a diameter about 0.6 times the initial diameter thereof. The larger end of the tapered shank has a diameter about 0.7 times the initial diameter thereof. The point is joined unitarily to the smaller end of the tapered shank and conforms exept at the tip, which is rounded, substantially to a tangent ogive, which is tangent to the tapered shank. The transition zone has a tapered portion with a smaller end joined unitarily to the larger end of the tapered shank and with a larger end joined unitarily to the head at a circumferential fillet. The larger end of the tapered portion of the transition zone has a diameter about 1.1 times greater than the initial diameter of the predetermined length wire. The axial length of the transition zone is less than about one half of the axial length of the tapered shank. The austempering step provides the pin with a surface hardness not greater than about Rockwell C 48 and with a core hardness in a range from about Rockwell C 48 to about Rockwell C 58.

A unitary fastener collation tube for retaining a plurality of fasteners useable in a stand-up fastener driving tool. The fastener collation tube includes an elongated body member having a channel having a substantially T-shaped cross section for receiving the fasteners arranged side by side therein. At least one end of the elongated body member includes a resilient fastener retaining member engageable with an endmost fastener of the plurality of fasteners so as to retain the plurality of fasteners in the channel of the fastener collation tube, whereby the plurality of fasteners retained in the fastener collation tube are releasable from the fastener collation tube when the resilient fastener retaining member is disengaged from the endmost fastener. The stand-up fastener driving tool includes a magazine with a slot for retaining a plurality of fasteners arranged side by side therein, and a tube holder coupled to the magazine for receiving the fastener collation tube, wherein a corresponding prong extending into the channel of the tube holder is engageable with the resilient fastener retaining member of the elongated body member so as to disengage the resilient fastener retaining member from the endmost fastener disposed therein.

Fastener collation tube for stand-up fastener driving tool

Fastner collation tube for stand-up fastener driving tool

A stand-up fastener driving tool including a rotary driver having a rotatable shaft with a fastener driving member disposed on a distal end thereof and disposed within telescoping upper and lower tubes, wherein the lower tube has a nose-piece with an opening for retaining a fastener therein. The fastener driving member is extendable toward and away from the nose-piece upon contraction and extension of the lower and upper tubes. A plurality of fasteners are retained side by side in a magazine of the tool, and are individually releasable therefrom upon contraction and extension of the upper and lower tubes. A feed tube connects the magazine to the nose-piece, and includes a magnetized wall portion for capturing and retaining fasteners fed from the magazine. A plunger actuatably coupled to the upper tube and movable relative to the feed tube releases the fastener retained along the magnetized wall portion of the feed tube as the lower and upper tubes are contracted, wherein another fastener is released from the magazine toward the feed tube as the lower and upper tubes are extended.

Fastener dispensing apparatus for stand-up fastener driving tool and

An attachment plate is used to attach insulation panels to building substrates using internal combustion cordless nail setting tools loaded with collating strips for feeding and holding nails in the tool magazine. The attachment plate has a washer and an annular chamber at a first end. A wall of the annular chamber is defined by a band of fingers. The interior of the attachment plate has a recess. The attachment plate second end has flexible tabs. The attachment plate is placed on a pilot and against a flange of a tool adapter. The attachment plate is pushed into the insulation panel such that the tool muzzle bends the fingers and passes through the same. When the tool is fired, a nail and nail collating ring are forced into and captured within the recess. The tabs bend against the substrate if the insulation panel is of less than nominal thickness.

Attachment plate for insulation panels

Method of attaching an insulation panel to a building substrate

In a tandem wheel and axle suspension for suspending a vehicle chassis, a flexible joint assembly for connecting the underside of each distal end of a fore-and-aft leaf spring equalizer beam to the subadjacent end of a transverse axle comprising a downwardly projecting spring anchor mounted on the underside of the distal end of the bottom leaf of the leaf spring, a load cushion formed of elastomeric material having an upwardly open socket in which the projecting portion of the spring anchor is embedded, and an axle bracket mounted on the subadjacent end of the axle having an upwardly open socket formation into which the load cushion is seated. An elastomeric rebound cushion is mounted over each distal end to prevent the spring anchor from disengaging the load cushion axle and is without upper torque rods.

Growing community of inventors

Chicago, IL, United States of America

Gilbert Olvera