Abstract: A waveguide apparatus for conveying a virtual image has first and second parallel planar surfaces. A first in-coupling diffractive optic on the first planar surface directs a first subset of image-bearing light beams into the waveguide and a second in-coupling diffractive optic on second planar surface directs a second subset of the image-bearing light beams into the waveguide. The first and second in-coupling diffractive optics are offset with respect to each other along the first and second parallel planar surfaces to independently direct the respective first and second subsets of the image-bearing light beams into the waveguide.

Abstract: A transfer mechanism for transferring food product from a compartment of a food processing system includes a conduit having a first end portion configured to be in communication with the compartment and a second end portion, a fluid discharge positioned substantially within the conduit between the first end portion and the second end portion, and a pressurized fluid source in communication with the fluid discharge. The pressurized fluid source is operable to propel a fluid through the fluid discharge to move the food product from the first end portion of the conduit toward the second end portion.

Abstract: A rocker shoe has a lower rocker surface extending across the plantar surface of the shoe sole from the heel and terminating short of the toe. A rocker shoe construction kit has a rigid or substantially rigid rocker piece having an upper surface for securing over a major portion of a lower plantar surface of the sole of a shoe upper and a lower surface of predetermined rocker shape, a cushioning layer for securing over the lower surface of the rocker piece, and a layer of tread material configured for securing over the lower surface of the cushioning layer and any exposed portion of the plantar surface of a shoe.

Abstract: Refrigerant compositions for an HVACR system that includes R1123, R32 and at least one more refrigerant. The refrigerant composition has a reduced GWP of about or less than 1500. Some of the refrigerant composition may be suitable for replacing R410A, R32, and/or R22. Methods for making the refrigerant composition including mixing an amount of R1123, and amount of R32, and an amount of at least one more refrigerant. Methods of retrofitting an existing refrigerant composition include adding an amount of at least one refrigerant to an existing refrigerant composition to produce a retrofitted refrigerant composition. The retrofitted refrigerant composition includes at least R1123 and R32.

Abstract: Compositions and methods are described for reducing flammability in a heating, ventilation, and air conditioning (HVAC) system having R32 refrigerant included in the refrigerant composition. Refrigerant compositions and methods of use are described which can be used for retrofitting, servicing, controlling flammability, improving performance, lubricant solubility and miscibility, and improving the safety of an HVAC system.

Abstract: A method and apparatus for continuous pressure cooking product includes a pressure cooking section, an isolating chamber, and an output section. A first product and fluid valve is between the pressure cooking section and the isolating chamber. A second product and fluid valve is between the isolating chamber and the output section. A fluid valve is between a source of pressurized fluid and the isolating chamber. Product is provided to the pressure cooking section and cooked. The fluid valve is opened so that the isolating chamber becomes substantially the same pressure as the pressure cooking section. The first controllable product and fluid flow valve is opened and product enters the isolating chamber, and then closed to isolate product in chamber. The second controllable product and fluid valve is opened and product moves from the chamber to the output section. Then the second controllable product and fluid valve is closed.

Abstract: A frame supports a display apparatus against the head of a viewer. A projector fitted within the frame generates a beam of image-bearing light. A light guide coupled to a forward section of the frame has a waveguide, an in-coupling diffractive optic formed on the waveguide for directing image-bearing light beams into the waveguide, a turning optic formed on the waveguide for expanding the respective image-bearing light beams from the in-coupling diffractive optic in a first dimension, and an out-coupling diffractive optic formed on the waveguide for expanding the respective image-bearing light beams in a second dimension orthogonal to the first dimension and forming a virtual image within a viewer eyebox. A mount supports the light guide in front of the viewer and provides a hinge for angular adjustment of the waveguide with respect to the projector.

Abstract: An imaging light guide for conveying a virtual image has a waveguide with first and second color channels for directing light of a first and second wavelength range toward a viewer eyebox. Each color channel has an in-coupling diffractive optic to diffract an image-bearing light beam into the waveguide and a reflector array having a partially reflective surface and a dichroic filter surface in parallel. Reflector array surfaces expand the respective light beam of the channel from the in-coupling diffractive optic in a first dimension and direct the expanded light beams toward an out-coupling diffractive optic. The dichroic surface reflects light of the color channel toward the reflective surface and transmits other light out of the waveguide. The out-coupling diffractive optic expands the image-bearing light beam orthogonally to the first dimension and directs the further expanded light beam toward the viewer eyebox.

Abstract: An imaging light guide has waveguide for conveying image-bearing light beams from an image source to an eyebox within which a virtual image can be viewed. First and second in-coupling diffractive optics direct first and second sets of the image-bearing light beams into the waveguide along different first and second paths. First and second turning diffractive optics disposed along the respective paths expand the image-bearing light beams of the first and second sets in a first dimension and direct the expanded image-bearing light beams of the first and second sets to first and second out-coupling diffractive optics. The first and second out-coupling diffractive optics further expand the image-bearing light beams of the two sets in a second dimension and direct the further expanded image-bearing light beams of the two sets from the waveguide toward the eyebox.

Abstract: A wearable display apparatus has a support that mounts the display apparatus against the head of a viewer; a ball joint that is fitted within the support and coupled to a clamp that extends from the support; a slide that is translatable within the clamp in a first direction and that holds a display module for forming the display image; and a display coupled to the display module and rotatable in a first arc about a vertical axis that extends in a second direction that is orthogonal to the first direction and further rotatable in a second arc about a horizontal axis that is substantially orthogonal to the vertical axis.

Abstract: Apparatus, systems, methods, and computer program products are disclosed for providing software updates to client devices. A client device (such as a thermostat) executes software to perform one or more functionalities of the device. Upon receiving an indicating that a software update is available, the device waits to download the software update until pre-download conditions are satisfied. Once the software update is downloaded, the device then waits to install the software update until pre-install conditions are satisfied. If the software update is non-critical and received during an initial installation of the device, the software update may not be installed until after installation of the device is complete. If the device is a thermostat, the device may delay installation of the software update until a controlled HVAC system in inactive. Control of the HVAC system may be disabled during installation of the software update.

Abstract: An imaging light guide has a waveguide formed as a coated substrate having first and second surface coatings. A first in-coupling diffractive optic on the first coating directs diffracted light of a first wavelength range into the waveguide along a first direction. A second in-coupling diffractive optic on the second coating directs diffracted light of a second wavelength range into the waveguide along a second different direction. A first dichroic patch between the first surface of the substrate and the first surface coating for (a) transmitting the first wavelength range, (b) transmitting the second wavelength range through a range of incidence angles, and (c) reflecting the second wavelength range through a higher range of incidence angles. A second dichroic patch between the second surface of the substrate and the second surface coating for transmitting the second wavelength range and reflecting the first wavelength range.

Abstract: Methods and systems facilitate network communications between a wireless network-connected thermostat and a cloud-based management server in a manner that promotes reduced power usage and extended service life of an energy-storage device of the thermostat, while at the same time accomplishing timely data transfer between the thermostat and the cloud-based management server for suitable and time-appropriate control of an HVAC system. The thermostat further comprises powering circuitry configured to: extract electrical power from one or more HVAC control wires in a manner that does not require a “common” wire; supply electrical power for thermostat operation; recharge the energy-storage device (if needed) using any surplus extracted power; and discharge the energy-storage device to assist in supplying electrical power for thermostat operation during intervals in which the extracted power alone is insufficient for thermostat operation.

Abstract: The present disclosure provides a compressor system operable for compressing a working fluid such as air. A conditioner is positioned upstream of the compressor to reduce the humidity and in some embodiments may control a temperature of the working fluid entering the compressor. A working fluid aftercooler and a lubricant cooler is positioned downstream of the compressor. A first heat exchange system directs water from a source through the conditioner and then to the aftercooler and oil cooler in parallel. A second heat exchange system directs oil from the compressor to the oil cooler and then to a regenerator prior to reentry into the compressor. A control system with one or more control valves is configured to provide oil to the compressor at a target temperature defined to ensure that the temperature of the discharged compressor is above a pressure dew point temperature.

Abstract: An imaging apparatus for stereoscopic viewing has a frame that seats against the head of a viewer. A left-eye imaging apparatus and a right-eye imaging apparatus are supported by the frame. The frame is reshapeable in a manner that changes a relative alignment of the left-eye imaging apparatus and the right-eye imaging apparatus to accommodate different viewer head anatomies. An adjustment mechanism responsive to the reshaping of the frame restores relative alignment of the left-eye imaging apparatus and the right-eye imaging apparatus for conveying stereoscopic virtual images to the viewer.

Abstract: A transfer mechanism for transferring food product from a compartment of a food processing system includes a conduit having a first end portion configured to be in communication with the compartment and a second end portion, a fluid discharge positioned substantially within the conduit between the first end portion and the second end portion, and a pressurized fluid source in communication with the fluid discharge. The pressurized fluid source is operable to propel a fluid through the fluid discharge to move the food product from the first end portion of the conduit toward the second end portion.

Abstract: An image light guide for conveying a virtual image has a waveguide that conveys image-bearing light, formed as a flat plate having an in-coupling diffractive optic with a first grating vector diffracting an image-bearing light beam into the waveguide and directing diffracted light. An out-coupling diffractive optic is formed as a plurality of overlapping diffraction gratings including a first grating pattern having first grating vector k1 and a second grating pattern having a second grating vector k2 for expanding and ejecting the expanded image bearing beams from the waveguide into an expanded eyebox within which the virtual image can be seen.

Abstract: A therapeutic garment for an animal includes body portion, first and second leg straps extending caudally from a caudal end of the body portion, a chest plate portion extending cranially from a cranial end of the body portion, an opening defined at the cranial end of the body portion configured to accommodate a head of the animal, first and second ventral elastic straps connected to an exterior surface of the chest plate portion, first and second dorsal elastic straps connected to an exterior surface of the body portion, and at least one rear fastener proximate to the caudal end of the body portion. The first and second leg straps, the first and second ventral elastic straps, and the first and second dorsal elastic straps are each configured to be detachably connected to the at least one fastener proximate to the caudal end of the body portion.

Abstract: An airbag system having an airbag control module configured to detect a direction of impact of a vehicle, an airbag assembly having an airbag cushion with an internal tether, and a tether adjustment mechanism. The tether adjustment mechanism is in communication with the airbag control module and engagement with the tether. The airbag control module is configured to send a signal to the tether adjustment mechanism to adjust the tether by ratcheting a portion of the middle segment of the tether when the airbag cushion deploys such that one of a first tether length and a second tether length is extended and the other of the first tether length and the second tether length is contracted to provide a larger volumetric capacity of the airbag cushion in the direction of impact.

Abstract: Systems and methods relating to communication within a fabric network are presented. The fabric network includes one or more logical networks that enables devices connected to the fabric to communicate with each other using various profiles known to the devices. A device sending a message may follow a general message format to encode the message so that other devices in the fabric may understand the message regardless of which logical networks the devices are connected to. Within the message format, a payload of data may be included for the receiving device to forward, store, or process the message. The format and the contents of the payload may vary according to a header within the payload that indicates a profile and a message type within the profile. Using the profile and message type, the receiving devices may decode the message to process the message.