A jogging machine comprises a main frame and a jogging seat pivoted to the main frame. The main frame is provided with a plurality of casters in contact with a floor on which the jogging machine is rested. The jogging seat is provided at one end thereof with one or more rollers, which come in contact with the floor at such time when the jogging seat is turned in relation to the base frame to be in an upright position perpendicular to the main frame. The movement of the jogging machine on the flo...

This disclosure contemplates N-phosphonomethyl glycine ester anhydrides as new compounds, as well as a process for producing such compounds. This disclosure also contemplates the use of such N-phosphonomethyl glycine ester anhydrides as herbicides and as aids in the harvesting of citrus fruit. Also disclosed are compositions containing the N-phosphonomethyl glycine ester anhydride as active ingredients, such composition being useful as herbicides and for aiding in the harvesting of citrus fruit.

The present invention provides a frame that supports a pair of simulator skis above a floor surface. Rear ski ends are pivotally mounted to a rear ski support in rolling contact with a track surface on a rear frame portion. Front ski ends are pivotally mounted to a front ski support in rolling contact with the floor surface. Non-parallel, equal length bars are disposed on opposite sides of the pair of skis, extending from rear bar ends pivotally mounted to the base to front bar ends pivotally mo...

A treadmill includes a front leg frame and a connecting arm. The front leg frame has a front end pivoted to a support base. The connecting arm has a lower end pivoted to the leg frame. An upper end of the connecting arm is connected to a threaded sleeve connected telescopically to a motor-driven screw rod disposed at a top side of a tread base. A hydraulic telescopic unit is pivoted to the leg frame and the support base. When the threaded sleeve is driven by the screw rod, the tread base is incl...

Carboxyalkyl esters of N-phosphonomethyl glycine and their salts and a process for their preparation are described. These esters and salts are useful as contact herbicides.

A compound having the following structural formula ##STR1## wherein R is nitro or hydrogen; R.sup.1 is C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.3 alkylthio; and R.sup.2 is hydrogen or chlorine and X is chlorine, bromine, or iodine.

The exercise device of the present invention has a base having two side members and front member that extends between the side members. At least one truss member extends from the base. A rotatable shaft is positioned on the truss member and a flywheel is mounted on the shaft. A rotatable drive shaft is mounted on the truss member and a first one-way clutch and a second one-way clutch are mounted on the drive shaft. A means is provided for operatively connecting the drive shaft to the rotatable s...

An exercise machine, such as a treadmill, has a user cooling system. The cooling system includes at least on fan that is mounted in a display console. The fan draws air through a duct and directs the air toward an upper portion of the user's body. In one arrangement, the fan and the duct are configured to reduce recirculation of air.

An apparatus for sliding exercise and recreation, such as a sports board including stick-on sheeting having an adhesive outer layer adhered to a substrate such as the underside of a sport board, and an opposed layer consisting of a low-friction, durable material adapted for engaging in sliding contact with the low-friction surface of area sheeting superposed on a support structure.

The present invention relates to a hidden roller of a treadmill. A hidden roller set is pivotably connected at the bottom end of both hollow support arms by means of a pivot, respectively. As a result, the hidden roller sets can be received inside the hollow support arms when the treadmill base is placed in operational state, thereby avoiding an unexpected sliding shift. To the contrary, the hidden roller sets can be taken out when the treadmill base is folded up in storage position. Thus, the r...