A portable tool comprising a hollow body delimiting two chambers and comprising a shoulder and a barrel extending from the shoulder. A piston slides in the chambers and a stem is secured to the piston and is accommodated in the barrel. A C-shaped head with a first end forms a shoe which presses against the shoulder and in which is created a bore into which the barrel fits, and with a second end facing the free end of the stem. A fastening system comprises a channel on the barrel perimeter. Two sliders are slidably mounted on the shoe parallel to a plane of movement which is perpendicular to the axis of the barrel. Each slider has an arc shaped face and movable between a retracted position in which the face is accommodated in the channel and an extended position in which the face is outside the channel

An apparatus for automated application of rivets to a part is described, in which an operator is not required to manually align a rivet gun with each hole to be riveted or to manually squeeze the rivet into place. The apparatus includes a frame assembly, a tool positioning assembly attached to the frame assembly, and a movable tool assembly engaged with the tool positioning assembly and configured to be moved with respect to the tool positioning assembly. The tool positioning assembly is adjustable to correspond with a position of a number of rivet holes on a part to be riveted. In this way, the movable tool assembly is able to sequentially align with each of a number of rivet holes via alignment with the tool positioning assembly and to apply a rivet to each of the rivet holes.

The method includes the step of positioning the sheets in an at least partially overlapping relationship. The method continues with the step of inserting a rivet that has a height through an overlapping area of the sheets. The method proceeds with the step of, with the rivet at a temperature in the range of 15-30 Celsius, collapsing the rivet between a pair of ramming surfaces to shorten the rivet and partially expand the rivet outwardly to lock the rivet with the sheets. The entire method results in a very strong connection between the sheets and with a great durability at a low cost.

A coating applied to an article is provided. The coating has an adhesive material, in contact with at least one substrate of the article. The coating has a plurality of high density metal pellets disposed in the adhesive material. The high density metal pellets are in an amount of at least 90% by weight of the total weight percent of the coating, and each high density metal pellet has a diameter of at least 0.04 inch. The coating further has a polymer material. The coating is applied to the at least one substrate of the article to obtain a mass-enhanced, coated article. The coating has a coating thickness of at least 0.25 inch. The coating thickness and the amount of high density metal pellets are sufficient to provide an attenuation of vibration of the coated article and a reduced risk of unwanted ergonomic effects.

A coating applied to an article is provided. The coating has an adhesive material, in contact with at least one substrate of the article. The coating has a plurality of high density metal pellets disposed in the adhesive material. The high density metal pellets are in an amount of at least 90% by weight of the total weight percent of the coating, and each high density metal pellet has a diameter of at least 0.04 inch. The coating further has a polymer material. The coating is applied to the at least one substrate of the article to obtain a mass-enhanced, coated article. The coating has a coating thickness of at least 0.25 inch. The coating thickness and the amount of high density metal pellets are sufficient to provide an attenuation of vibration of the coated article and a reduced risk of unwanted ergonomic effects.

An automatic riveting device is provided with a rivet suction attachment unit for attaching the head of a rivet by suction, a tightening unit for tightening a stringer and clip by the rivet, and a control unit. The control unit controls the rivet suction attachment unit so that the rivet suction attachment unit to which the head of the rivet is attached is moved toward an upper side support body and the shaft part of the rivet is inserted into a through hole formed in riveting position P, and controls the tightening nit so that after the rivet suction attachment unit inserts the rivet into the through hole and retreats from the riveting position P, an upper anvil and a lower anvil are brought into proximity and the stringer and clip are tightened by the rivet.

Example valve stem and plug connections and example staking tools are described herein. An example apparatus includes a valve plug having a first side, a second side opposite the first side and a bore extending from the first side to the second side. A first portion of the bore is tapered from a first diameter to a second diameter smaller than the first diameter. A valve stem is disposed within the bore of the valve plug. The valve stem includes a first section, a second section and a third section between the first and second sections. The third section is tapered from a third diameter to a fourth diameter smaller than the third diameter. The tapers of the first portion of the valve plug and the third section of the valve stem, when engaged, create a frictional force that resists movement of the valve stem out of the bore.

A coating applied to an article is provided. The coating has an adhesive material, in contact with at least one substrate of the article. The coating has a plurality of high density metal pellets disposed in the adhesive material. The high density metal pellets are in an amount of at least 90% by weight of the total weight percent of the coating, and each high density metal pellet has a diameter of at least 0.04 inch. The coating further has a polymer material. The coating is applied to the at least one substrate of the article to obtain a mass-enhanced, coated article. The coating has a coating thickness of at least 0.25 inch. The coating thickness and the amount of high density metal pellets are sufficient to provide an attenuation of vibration of the coated article and a reduced risk of unwanted ergonomic effects.

A caulking jig comprises a main body, a blade portion having a blade edge, a projection member fit in the main body, an urging member which urges the projection member, and an engagement mechanism configured to engage the projection member to the main body. In a state in which the projection member is not engaged, the projection member is held at a projected position where a distal end portion of the projection member is projected from the blade edge. In a state in which the projection member is engaged, the projection member is held at an entered position where the distal end portion is retracted to a more entered position than the blade edge.

A caulking jig comprises a main body, a blade portion having a blade edge, a projection member fit in the main body, an urging member which urges the projection member, and an engagement mechanism configured to engage the projection member to the main body. In a state in which the projection member is not engaged, the projection member is held at a projected position where a distal end portion of the projection member is projected from the blade edge. In a state in which the projection member is engaged, the projection member is held at an entered position where the distal end portion is retracted to a more entered position than the blade edge.