Abstract: A rail system for an exercise machine which may be efficiently manufactured with different dimensions to suit different exercisers and exercise spaces. An exemplary embodiment includes a first rail, a second rail, a carriage movably connected to the first and second rails, at least one biasing member or elongated member adapted to be directly or indirectly connected to the carriage, and one or more spacers extending between the first and second rails. A lower member is connected between the rails beneath the spacers so as to enclose the space between the rails. The lower member includes a plurality of dividers defining channels in which elongated members or biasing members may extend. The spacers, rails, and lower member form a monorail configuration. The effective width of the monorail may be easily adjusted by simply using spacers having different widths, thus easing the manufacture of such exercise machines having different sizes.

Abstract: An adjustable resistance exercise machine for providing variable resistance forces on a pull cable extending from the machine. The adjustable resistance exercise machine generally includes a plurality of power springs that may be selectively engaged using an adjustment mechanism. By engaging springs with different forces, the resistance may be adjusted incrementally as preferred for performing different exercises. The adjustable resistance exercise machine may be connected to various structures, either below or above an exerciser, to allow the exerciser to choose whether to pull the pull cable up or down during exercise.

Abstract: A rail system for an exercise machine which may be efficiently manufactured with different dimensions to suit different exercisers and exercise spaces. An exemplary embodiment includes a first rail, a second rail, a carriage movably connected to the first and second rails, at least one biasing member or elongated member adapted to be directly or indirectly connected to the carriage, and one or more spacers extending between the first and second rails. A lower member is connected between the rails beneath the spacers so as to enclose the space between the rails. The lower member includes a plurality of dividers defining channels in which elongated members or biasing members may extend. The spacers, rails, and lower member form a monorail configuration. The effective width of the monorail may be easily adjusted by simply using spacers having different widths, thus easing the manufacture of such exercise machines having different sizes.

Abstract: An adjustable resistance exercise machine for providing variable resistance forces on a pull cable extending from the machine. The adjustable resistance exercise machine generally includes a plurality of power springs that may be selectively engaged using an adjustment mechanism. By engaging springs with different forces, the resistance may be adjusted incrementally as preferred for performing different exercises. The adjustable resistance exercise machine may be connected to various structures, either below or above an exerciser, to allow the exerciser to choose whether to pull the pull cable up or down during exercise.

Abstract: A rail system for an exercise machine which may be efficiently manufactured with different dimensions to suit different exercisers and exercise spaces. An exemplary embodiment includes a first rail, a second rail, a carriage movably connected to the first and second rails, at least one biasing member or elongated member adapted to be directly or indirectly connected to the carriage, and one or more spacers extending between the first and second rails. A lower member is connected between the rails beneath the spacers so as to enclose the space between the rails. The lower member includes a plurality of dividers defining channels in which elongated members or biasing members may extend. The spacers, rails, and lower member form a monorail configuration. The effective width of the monorail may be easily adjusted by simply using spacers having different widths, thus easing the manufacture of such exercise machines having different sizes.

Abstract: An adjustable resistance exercise machine for providing variable resistance forces on a pull cable extending from the machine. The adjustable resistance exercise machine generally includes a plurality of power springs that may be selectively engaged using an adjustment mechanism. By engaging springs with different forces, the resistance may be adjusted incrementally as preferred for performing different exercises. The adjustable resistance exercise machine may be connected to various structures, either below or above an exerciser, to allow the exerciser to choose whether to pull the pull cable up or down during exercise.

Abstract: An improved ergonomic handle for an exercise machine having a cross-sectional shape designed to more closely conform with the natural anatomical shape of a hand in a grasping position for reducing compressive pressure on the hand during exercise, improving grip, and accommodating a wide range of hand sizes. The ergonomic handle for an exercise machine generally includes solid bars and hollow tubular structures with a variety of substantially polygonal cross-sections, including various substantially triangular and trapezoidal cross-sections. Alternative embodiments include underlying bars and handles of various cross-sectional shapes with resilient cover materials having substantially polygonal cross-sections. The improved ergonomic handles may replace traditional round cross-section handles anywhere on an exercise machine they may be located.

Abstract: A method and apparatus for forming a concrete flush floor having at least one trough formed therein, the method making use of high chair units (14) that support a fiberglass mold (16) having a truncated teardrop-shaped cross section. The fiberglass mold (16) may be supported at an angle to provide a resulting sloping trough. A spacer (17) can be placed in the fiberglass mold (16) during the pouring process to urge the fiberglass mold (16) to assume a first shape. When the concrete has hardened, the spacer (17) can be forced to a second position that allows the fiberglass mold (16) to assume a second position, which second position allows the fiberglass mold (16) to be easily removed from the cast concrete.