Abstract: Additively manufactured thrust chambers, thrust chambers with integral fluid manifolds and turbine exhaust manifolds, and hybrid additive manufacturing methods for their production, are provided. Hybrid additive manufacturing techniques may combine a variety of processes including, WAAM, PBF, cold spray and DED, for example, to produce objects with variant dimensional requirements, i.e., large overall size and small features. Hybrid additive manufacturing may be defined as provide various process layers within any manufactured object. These process layers in turn allow for the introduction of variable feature and size distribution throughout the manufactured object. Hybrid process layers according to aspects may also allow the use of a variety of materials or may use a single material across the various process layers.

Abstract: Additively manufactured thrust chambers and thrust chambers with integral fluid manifolds, and hybrid additive manufacturing methods for their production, are provided. Hybrid additive manufacturing techniques may combine a variety of processes including, WAAM, PBF, cold spray and DED, for example, to produce objects with variant dimensional requirements, i.e., large overall size and small features. Hybrid additive manufacturing may be defined as provide various process layers within any manufactured object. These process layers in turn allow for the introduction of variable feature and size distribution throughout the manufactured object. Hybrid process layers according to aspects may also allow the use of a variety of materials or may use a single material across the various process layers.

Abstract: Additively manufactured thrust chambers and thrust chambers with integral fluid manifolds, and hybrid additive manufacturing methods for their production, are provided. Hybrid additive manufacturing techniques may combine a variety of processes including, WAAM, PBF, cold spray and DED, for example, to produce objects with variant dimensional requirements, i.e., large overall size and small features. Hybrid additive manufacturing may be defined as provide various process layers within any manufactured object. These process layers in turn allow for the introduction of variable feature and size distribution throughout the manufactured object. Hybrid process layers according to aspects may also allow the use of a variety of materials or may use a single material across the various process layers.

Abstract: A sterilization apparatus for sterilizing a respiratory mask is described. The sterilization apparatus comprises a sterilization chamber, an articulating mask support disposed inside the sterilization chamber, a bi-directional fan system disposed inside the sterilization chamber and configured to move air through an air passage to simulate human breathing, and a sterilization agent generator coupled to the sterilization chamber. The bi-directional fan system pumps air that includes the sterilization agent back and forth through the oxygen mask via the air passage, to mimic normal breathing of an individual using the mask.

Abstract: A method for solidifying cementitious wastewater by combining the wastewater with a super absorbent polymer composition that includes a UV-stabilizer to form a mixture and disposing of the mixture as solid construction waste. The UV-stabilizer may be a stabilizing additive in the super absorbent polymer composition that inhibits the reversion from a solid or semi-solid mixture back to a liquid. In some embodiments, the method includes placing the mixture in UV-light non-transmissive packaging. After placing the mixture in the UV-light non-transmissive packaging, the package is closed and can be permanently sealed. The sealed package with solidified material therein can then be disposed as solid construction waste. The super absorbent polymer composition can include zeolite or other molecular sieves.

Abstract: A method for solidifying cementitious wastewater by combining the wastewater with a super absorbent polymer composition that includes a UV-stabilizer to form a mixture and disposing of the mixture as solid construction waste. The UV-stabilizer may be a stabilizing additive in the super absorbent polymer composition that inhibits the reversion from a solid or semi-solid mixture back to a liquid. In some embodiments, the method includes placing the mixture in UV-light non-transmissive packaging. After placing the mixture in the UV-light non-transmissive packaging, the package is closed and can be permanently sealed. The sealed package with solidified material therein can then be disposed as solid construction waste. The super absorbent polymer composition can include zeolite or other molecular sieves.

Abstract: A method for solidifying cementitious wastewater by combining the wastewater with a super absorbent polymer composition that includes a UV-stabilizer to form a mixture and disposing of the mixture as solid construction waste. The UV-stabilizer may be a stabilizing additive in the super absorbent polymer composition that inhibits the reversion from a solid or semi-solid mixture back to a liquid. In some embodiments, the method includes placing the mixture in UV-light non-transmissive packaging. After placing the mixture in the UV-light non-transmissive packaging, the package is closed and can be permanently sealed. The sealed package with solidified material therein can then be disposed as solid construction waste. The super absorbent polymer composition can include zeolite or other molecular sieves.

Abstract: Systems and methods that can externally meter and display cumulative, noncumulative, and re-settable service hours for monitored equipment as well as provide data associated with incremental amounts of equipment usage (e.g., hours, days, etc.). System external interfaces with metered equipment to determine usage. Systems and methods of use for recording the total units of cumulative, incremental and re-settable use of equipment, such as publicly available electromechanical equipment rentals (e.g., carpet cleaners, lawn maintenance equipment, electrical generators, and audio/visual equipment. Equipment-mounted meter can performs as a data recorder for tracking metered equipment usage. A monitoring unit associated with metered equipment can be battery powered and self contained. A handheld device is adaptable to communicate with, interrogate and reset functions for metered equipment.

Abstract: A appliance (100) having a receiver (324) capable of receiving and a decoder (314) capable of decoding a time signal (400) into a time value. A clock (308) in the appliance (100) is updated or set with the received time value and an indicator (104) is activated to notify consumers that time synchronization to a time signal has occurred. The decoder (314) from the decoded time signal (400) is able to identify leap years and changes to and from daylight savings time.

Abstract: An improved cooking grill includes a base; a grilling area with a heat source; a control panel; an integrated rotisserie with a rotating spit located adjacent the grilling area driven via a coupling by a motor located within the base; a temperature probe located adjacent the grilling area; and a removable control module communicating with the temperature probe and having a grill light, a timer, a temperature display, and a handheld food probe.

Abstract: A LED signal lamp that monitors, controls and tests the operational status of a plurality of LEDs. A separate current source is provided for each LED and resistors are in series between the current sources and LEDs. Analog-to-digital converters monitor the voltages at the resistors and LEDs and convert the voltages to digital form for a data processor. The data processor determines the junction temperature of each LED, controls the amount of current supplied to each LED and tests the operational status of each LED by matching its characteristics to a known diode curve. A pulse-width modulator provides further control of the amount of power supplied to the current sources. The data processor further controls a vital disconnect and a vital load. An energy storage/limiter circuit stores energy for the data processor during the absence of normal power input. Related methods of monitoring, controlling and testing such an LED system are also disclosed.