Abstract: In certain example embodiments, provided is a compact massager, comprising: (1) one or more massage head attachment portions; and (2) a massager body, wherein the massager body is configured to connect with the one or more massage head attachment portions at the front body side, the massager body further comprises: (i) a motor; (ii) a PCBA; (iii) a display; (iv) a power source; wherein the power source is configured to electrically connect with the motor, the PCBA and the display; (v) a Z-shaped, transmission crank, configured to translate rotary motion from the motor to reciprocating motion of the one or more massage head attachment portions; and (vi) a counterweight, having an eccentric cam, an input shaft and an output shaft, wherein the input shaft is disposed at one side of the cam and is operatively connected to the motor, and an output shaft is disposed at an opposing side of the cam and is operatively connected to the transmission crank.

Abstract: A ball ramp brake including a housing, a disc assembly within the housing, and an annular rotatable actuator to actuate the brake by compressing the disc assembly. The rotatable actuator includes a plurality of depressions oriented circumferentially therein which become progressively shallower in a first circumferential direction. A plurality of depressions are circumferentially oriented in a surface of the housing and become progressively shallower in a second circumferential direction. The depressions in the actuator and the depressions in the housing each have a first angle of depression that is steeper than a second angle of depression. A boot seal may be provided between the fluid chamber of an actuating cylinder and the inner area within the housing to prevent fluid leakage. In addition, a cooling chamber may be provided in the housing to improve the brakes efficiency.

Abstract: A ball ramp brake including a housing, a disc assembly within the housing, and an annular rotatable actuator to actuate the brake by compressing the disc assembly. The rotatable actuator includes a plurality of depressions oriented circumferentially therein which become progressively shallower in a first circumferential direction. A plurality of depressions are circumferentially oriented in a surface of the housing and become progressively shallower in a second circumferential direction. The depressions in the actuator and the depressions in the housing each have a first angle of depression that is steeper than a second angle of depression. A boot seal may be provided between the fluid chamber of an actuating cylinder and the inner area within the housing to prevent fluid leakage. In addition, a cooling chamber may be provided in the housing to improve the brakes efficiency.

Abstract: A method for providing biological control to a flow of water in a recirculating potable hot water system. In such a system, water is subjected to an initial chemical treatment using an oxidizing biocide such as chlorine dioxide or peracetic acid that rapidly kills biofilm and Legionella bacteria. This treatment is continued until existing Legionella bacteria and biofilm are controlled. Once the bacteria and biofilm are controlled the chemical treatment is stopped. Starting concurrently with the chemical treatment or at the termination of the chemical treatment, non-chemical water treatment is provided. The non-chemical water treatment maintains the water system in a condition which is free of Legionella bacteria and biofilm. Chemical water treatment may be repeated intermittently should it prove desirable or necessary.

Abstract: A windshield wiper is provided which includes a wiper frame; a scraper having an upper and a lower surface defining opposite leading edges, the upper surface connected to the wiper frame, wherein the wiper frame and scraper form an assembly having a means for rotation about a fixed point relative to a wiper arm; and at least one wiping blade connected to the lower surface of the scraper.