Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7343918 | Breathing gas feed assembly for aircraft flight crew, and a stowage box for an emergency breathing mask A breathing gas feed assembly for the flight crew of an airplane comprises an emergency breathing mask and a stowage box for the mask. The box is adapted to receive the mask diagonally and it is closed by two doors hinged about respective hinge axes situated on two ... | 03/18/2008 |
| 7082944 | Changeover valve and dual air supply breathing apparatus A dual air supply breathing apparatus that allows a user to quickly and easily switch between two or more sources of air or compressed gas, such as filtered air from a Powered Air Purifying Respirator (PAPR) and compressed air from a Self-Contained Breathing Apparat... | 08/01/2006 |
| 6983746 | Underwater exhaust system Provided are exemplary embodiments of an underwater breathing exhaust system configured to lower the exhalation, effort and to direct water adjacent an exhaust valve to reduce the likelihood of water entering the system and/or gas free flowing from the system. ... | 01/10/2006 |
| 6571796 | Tracheal pressure ventilation respiratory system Embodiments of the present invention described and shown in the specification and drawings include a respiratory system for automatically and variably controlling the supply of a pressurized breathing gas to a patient via a breathing circuit that is in fl... | 06/03/2003 |
| 6338342 | Respirator headpiece and release mechanism A quick release mechanism and headpiece for use with a respirator. The quick release mechanism uses an over center latch pivotly attached to a yoke to control the tension in a pair of upper tension cords. In the latched position the upper tension cords tr... | 01/15/2002 |
| 6279575 | Regulator with bypass tube A regulator includes a box-like body containing a device for regulating the flow of air. A tube connected to the box-like body carries a mouthpiece. An air inlet hose is connected to the box-like body by means of an inlet valve. This valve is controlled b... | 08/28/2001 |
| 5996580 | Personal emergency breathing system with locator for supplied air respirators and shock resistant filter mounting An air filtration unit is carried within a closed canister whereby upon removal of the cover, ambient air may be filtered through the filtration unit and supplied to a user. In one form, the canister is applied to a fitting of a fireman's gas mask or hose... | 12/07/1999 |
| 5755222 | Fastening device for the mouthpiece of scuba-diving apparatus An improved fastening device for clamping an outlet of a second stage regulator on a scuba-diving apparatus to a mouthpiece to permit rapid manual disengagement without the use of tools. The device includes first and second strap members, each having firs... | 05/26/1998 |
| 5701890 | Regulator provided with a movable deflector A regulator for an underwater breathing apparatus includes a box-shaped body enclosing the air flow-regulating device, a tube connected to the box-shaped body supporting a mouthpiece, an air inlet duct connected to the box-shaped body through an inlet val... | 12/30/1997 |
| 5678542 | Decompression gas switching manifold A decompression gas switching manifold for technical diving with full face mask includes separate manifold blocks (for travel/bottom and decompression gases) which can be connected or isolated by an isolation valve.... | 10/21/1997 |
| 5640952 | Personal emergency breathing system for supplied air respirators The personal emergency breathing system includes a canister with a filtration unit for supplying filtered ambient air to a gas mask. The mask includes a fitting from which a regulator and hose coupled to an air tank may be removed after exhaustion of the ... | 06/24/1997 |
| 5499624 | Breathing mask with face-contact actuated overpressure generating switch A breathing mask (1) with overpressure in the mask interior space (26) with a demand oxygen system (8) at a connection piece (32) of the breathing mask, with a switching member (11) at the demand oxygen system for generating the overpressure, and with an ... | 03/19/1996 |
| 5485834 | Manually tunable, closed-circuit underwater breathing apparatus This invention is a manually tunable underwater breathing apparatus (UBA) which the resonant frequency of the UBA may be adjusted to meet the diver's breathing frequency by controlling the inertance component of the UBA impedance. The principles of the p... | 01/23/1996 |
| 5474062 | Medical ventilator A medical ventilator having a valve which controls the flow of gas from a pressurized gas source to a patient for inhalation. Flow through the valve is choked and pressure upstream of the valve is held stable so that a known relationship exists between th... | 12/12/1995 |
| 5261424 | Control device for flavor-generating article A control device for electrically heated flavor generators. Sensors detect user lip activity associated with taking a draw and trigger heating of flavor-generating materials.... | 11/16/1993 |
| 4683881 | Breathing regulator mouthpiece The disclosure sets forth a breathing gas second stage regulator having a tilt valve for introducing breathing gas into a breathing box through means of a diaphragm flexing into the interior thereof. Lever means connect the tilt valve to the diaphragm so ... | 08/04/1987 |
