Abstract: Intraoral sensors and associated systems, devices, and methods are provided. In some embodiments, an intraoral sensor for sensing pH within an intraoral cavity of a subject includes a film composed of a biocompatible polymer and a pH-sensitive molecule. The pH-sensitive molecule can be configured to change in color based on a pH within a subject's intraoral cavity. The pH-sensitive molecule can be immobilized in the film. The intraoral sensor can also include an adhesive configured to couple the film to a surface of a dental appliance or a tooth of the subject.

Abstract: Pressure sensor modules adapted for use with a dental appliance may include one or more pressure sensors encapsulated within a sealed cavity in which one or more walls of the sealed cavity are deformable so as to transduce pressure from outside of the cavity, due to deformation or movement of the dental appliance and/or the environment around the dental appliance, including the environment within a patient's mouth when wearing the dental appliance. Also described herein are method of making and using these apparatuses to identify and/or monitor the dental appliance, a patient condition and/or an orthodontic treatment. Also described herein are methods and apparatuses for identifying and/or characterizing sleep apnea using these pressure sensor modules.

Abstract: A door and door frame system are disclosed in which a door is constructed with a thickness approximately equal to the thickness of the door frame and wall through which the associated doorway extends.

Abstract: A three dimensional, animal-shaped archery target molded of polyurethane foam in two members consisting of a body member and a head member. The body member having a cavity therein for containing a replaceable target insert retained in place by a replaceable, sliding foam panel conforming externally to the shape of the animal located on one or both sides of the target insert thereby fully concealing the insert. A repairable clay core insert or various replaceable target inserts may be used including foam or packed cotton.

Abstract: A three dimensional, animal-shaped archery target molded of polyurethane foam in two members consisting of a body member and a head member. The body member having a cavity therein for containing a replaceable target insert retained in place by a replaceable, sliding foam panel conforming externally to the shape of the animal located on one or both sides of the target insert thereby fully concealing the insert. A repairable clay core insert or various replaceable target inserts may be used including foam or packed cotton.

Abstract: An archery target having a solid clay core surrounded by a high density foam wherein the core is capable of stopping an inestimable number of broadhead-tipped arrows in a manner nondestructive to either the arrows (or any components thereof) or the target itself. The clay core is essentially indestructible and can be restored to a like new condition through a simple procedure compressing the arrow holes remaining in the clay, the clay being formulated to allow easy withdrawal of broadhead arrows without damage to the arrow and with a minimum of residual material left on the arrow. Multiple clay cores may also be used to represent vital areas of an animal and/or as multiple bull's-eye for a target.

Abstract: An apparatus for attaching a pliable material, such as a towel, to a more rigid structure, such as a golf bag, is disclosed. The apparatus includes a body. The body has a cylindrical, vertically disposed bore. The body of the apparatus is attached to the rigid structure. A ball of smaller diameter than the bore of the body is wrapped in the pliable material and forced into the bore. The pliable material is thereby wedged between the ball and the wall of the bore.