Abstract: Various aspects of a generator, ultrasonic device, and method for estimating a state of an end effector of an ultrasonic device are disclosed. The ultrasonic device includes an electromechanical ultrasonic system defined by a predetermined resonant frequency, including an ultrasonic transducer coupled to an ultrasonic blade. A control circuit measures a complex impedance of an ultrasonic transducer, wherein the complex impedance is defined as Zg(t)=Vg(t)/Ig(t). The control circuit receives a complex impedance measurement data point and compares the complex impedance measurement data point to a data point in a reference complex impedance characteristic pattern. The control circuit then classifies the complex impedance measurement data point based on a result of the comparison analysis and assigns a state or condition of the end effector based on the result of the comparison analysis.

Abstract: Various aspects of a generator, ultrasonic device, and method for estimating a state of an end effector of an ultrasonic device are disclosed. The ultrasonic device includes an electromechanical ultrasonic system defined by a predetermined resonant frequency, including an ultrasonic transducer coupled to an ultrasonic blade. A control circuit measures a complex impedance of an ultrasonic transducer, wherein the complex impedance is defined as Z g ( t ) = V g ( t ) I g ( t ) . The control circuit receives a complex impedance measurement data point and compares the complex impedance measurement data point to a data point in a reference complex impedance characteristic pattern. The control circuit then classifies the complex impedance measurement data point based on a result of the comparison analysis and assigns a state or condition of the end effector based on the result of the comparison analysis.

Abstract: A golf ball engagement and support member includes golf ball engagement and support arms of a size and configuration providing for the ready retrieval of a golf ball and facilitating placement thereof on a tee. The member also facilitates retrieval and placement of golf tees and ball markers.

Abstract: A golf ball target device of unitary construction includes a hub portion and a plurality of arms radiating outwardly from the hub portion. The hub portion and arms form a number of target pockets. At least one projection projects into each target pocket to impede movement of a golf ball within the target pocket.

Abstract: Apparatus for placing and retrieving golf balls and tees includes a support block forming a recess to receive a tee top. Attached to converging surfaces of the support block are a tee impact plate used to pound a tee into the ground and a golf ball retainer including two arms having spaced ends and defining a recess for holding and carrying a golf ball. In addition, the support block supports a tubular-shaped retainer having an outwardly flared flange at one end thereof, the pick-up member being used to pick-up tees and the flange also serving to retain a golf ball in position between the arms of the golf ball retainer.

Abstract: Apparatus for serially dispensing and teeing golf balls includes tiltable meter mechanism disposed along a golf ball pathway for releasing balls one at a time. The apparatus also includes a golf ball supply tray having an opening and an anti-jam device for preventing golf ball bridging over the opening.

Abstract: Disclosed is a device for rolling up collapsible fire hose. It has a rotatably mounted drum with one open face and a slot in the periphery. The drum is mounted on the lower end of an elongated handle. The handle has hand grips on its upper end so a user can roll the drum along a flat surface by holding the handle. The coupling on one end of a fire hose is inserted in the drum through the open drum face with the adjacent portion of the hose flattened and inserted in the peripheral slot. The hose is spread out on a ground surface and the drum is then pushed along the path of the hose, so the hose is flattened and rolled around the drum periphery.

Abstract: Disclosed is a buggy shaft for a four wheel show buggy which attaches the buggy to the horse by means of a ball joint rather than a clevis hinge. The shaft is formed of steel tubing through its main portion and has a cast aluminum distal end. The ball joint is resiliently loaded and the shafts are filled with plastic material to avoid noise generation and transmission. A harness cleat is mounted on the cast aluminum end for securing the harness to the shafts and a tug guide is provided on the main portion of the shaft to keep the tug lines in proper position. In a modified form the buggy is connected to the horse by a center shaft which mounts to the harness collar by a ball joint and is similarly mounted to the buggy. In this form the shaft is formed entirely of steel tubing.