Abstract: Wireless headphones include left and right earphones connected by a cable. Each of the left and right earphones comprising a generally C-shaped body adapted to fit behind the user's ear, with a concave inner edge, a convex outer edge, a first end that is positioned generally adjacent the top of the user's ear and a second end positioned generally adjacent the bottom of the user's ear when the body is positioned behind the user's ear. A speaker having a sound tunnel associated therewith adapted to fit in the ear canal of the wearer; a resilient support extending forwardly and downwardly from the top end of the C-shaped body, the support normally supporting the speaker in a position which, when the C-shaped body behind the user's ear, is misaligned with the user's ear canal, but resiliently deflects to allow the sound tunnel to align with and be inserted into the user's ear canal, thereby resiliently biasing the C-shaped body against the user's head.

Abstract: An earphone is provided that includes a generally conical housing having generally circular front face adapted to be seated in the concha of the user's ear. The housing tapers away from the front face toward the rear of the housing. A wire guide extends from the rear of the housing, generally transversely to the axis of the housing. A speaker is disposed in the housing. A first resilient portion is disposed on the sidewall of the housing, opposite from the wire guide forming a first contact surface. A second resilient portion is disposed on the sidewall of the housing, opposite from the first resilient portion. The second resilient portion extends sufficiently circumferentially around the housing to form first and second contact surfaces disposed on opposite sides of the wire guide. The first, second, and third contact surfaces allowing the housing to be grasped between the thumb and two fingers of the user to facilitate insertion of the front portion of the housing into the user's ear.

Abstract: A behind-the-ear mountable earphone includes a generally C-shaped ear support. The support has a first section extending between a first end and the top of the “C”, adapted to fit behind the user's ear, and a second section extending from the top of the “C” to a second end. The second section is in a plane different from the first section, so that when the first section is behind the user's ear, the second section extends over the front of the user's ear. An earphone is telescopingly mounted on the second end of the C-shaped support. The earphone comprising a generally circular face adapted to be received in the concha of the user's ear, the generally circular face disposed at an angle with respect to the first section of the generally C-shaped support.

Abstract: A set of earphones includes a splitter having a splitter body, having first and second ends. A signal wire extends from the first end of the splitter. Left and right earphone wires extending from the second end of the splitter. A sleeve projecting from the second end of the splitter, surrounding the left and right earphone wires. A cinch is slidably mounted on the left and right earphone wires, a portion of the cinch is adapted to fit in the sleeve projecting from the second end of the elongate body, for stowing the cinch when not in use.

Abstract: A notifier device and method of use which can be placed into an air filter for an HVAC system and which produces a whistling sound when the filter needs replacement. The device generally forms an air pathway and includes a resonator so that air passing through the pathway creates a whistling sound. So as to be useable with different types of filter media (113), the device can include a door which can selectively open and close the air pathway depending on the air pressure differential desired to be detected.

Abstract: A towable baggage item is provided. The towable baggage item includes a body defining a storage compartment, the storage compartment configured to receive and carry objects. The towable baggage item also includes a retractable towing member coupled to the body. Furthermore, the towable baggage item also includes a retractable wheel assembly responsive to a position of the retractable towing member, wherein the retractable wheel assembly comprises at least one wheel and an actuator operatively coupled to each the wheel, wherein the actuator is movable along a first linear axis to extend and retract the wheel along a second linear axis different from the first linear axis.

Abstract: A towable baggage item is provided. The towable baggage item includes a body defining a storage compartment, the storage compartment configured to receive and carry objects. The towable baggage item also includes a retractable towing member coupled to the body. Furthermore, the towable baggage item also includes a retractable wheel assembly responsive to a position of the retractable towing member, wherein the retractable wheel assembly comprises at least one wheel and an actuator operatively coupled to each the wheel, wherein the actuator is movable along a first linear axis to extend and retract the wheel along a second linear axis different from the first linear axis.

Abstract: An expansion mechanism for separating first and second frames of an expandable article. The mechanism includes a rotary element that drives movement of an expansion element along a linear axis.

Abstract: A weight determining mechanism and a method for determining the weight of a piece of loaded luggage, particularly a backpack. The mechanism is generally incorporated into a carry handle of the piece of luggage allowing for it to be integral with the luggage and allowing for it to not take up additional space while allowing for quick and easy weight determinations without need for an external scale.

Abstract: A weight determining mechanism and a method for determining the weight of a piece of loaded luggage, particularly a backpack. The mechanism is generally incorporated into a carry handle of the piece of luggage allowing for it to be integral with the luggage and allowing for it to not take up additional space while allowing for quick and easy weight determinations without need for an external scale.

Abstract: An expandable baggage item without rigid support elements that is accessible for actuation from inside the storage compartment.