Mountable Printable Placard With Headband
A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7287496 | Combustion engine valve system A valve system for a combustion engine that includes at least one combustion chamber is disclosed. The combustion chamber includes an intake port and an exhaust port. The valve system includes cylindrical valve shaft, the cylindrical valve shaft having a cylindrical... | 10/30/2007 |
| 7191738 | Liquid piston internal combustion power system Methods, devices, and systems for power generation through liquid piston internal combustion engine. The liquid piston internal combustion engine of the invention utilizes a novel, synergetic combination of internal combustion and steam piston engines within the fra... | 03/20/2007 |
| 7111603 | Heli-shaft The HELI-SHAFT intake exhaust manifold system is comprised of a shaft with two helical and parallel runners cutout around its length. Surrounding the shaft is a sleeve of the same length to enclose and separate the two runners. The intake runner has an opening at th... | 09/26/2006 |
| 7089893 | Combustion engine valve system A valve system for a combustion engine that includes at least one combustion chamber is disclosed. The combustion chamber includes an intake port and an exhaust port. The valve system includes cylindrical valve shaft, the cylindrical valve shaft having a cylindrical... | 08/15/2006 |
| 7032702 | Rear covering part with a tail pipe orifice A rear covering part fastened to a tail pipe orifice for a motor vehicle exhaust system. The rear covering part includes a completely bordered passage opening through which the tail pipe orifice penetrates. The rear covering part avoids damage to the exhaust system ... | 04/25/2006 |
| 7013633 | External combustion thermal engine An engine block has one or more cylinders with associated pistons connected to turn a crankshaft. A distributor housing mounted on the block has a base with one or more first ports that open into corresponding cylinders. A hollow cylindrical distributor mounted for ... | 03/21/2006 |
| 7007639 | Air injection engine An internal combustion engine of the present invention features separate compression and expansion cycles. The engine includes a separate compressor device which pressurizes air by a ratio greater than 15 to 1, at least one two stroke combustion cylinder and a compr... | 03/07/2006 |
| 6994067 | Valve timing mechanism for a rotary valve internal combustion engine A rotary valve internal combustion engine comprising a crankshaft, a throttle (23), a throttle actuator, a cylinder head (7), a combustion chamber (8), and at least one rotary valve (1). The rotary valve (1) having at least two por... | 02/07/2006 |
| 6443116 | Valve device for an internal combustion engine The invention refers to a valve device for a combustion engine which includes a combustion chamber (1) and at least one channel (5) for communication between the combustion chamber (1) and an external space. The valve device includes a rotatable valve bod... | 09/03/2002 |
| 6293242 | Rotary valve system A complete rotary valve assembly and system is disclosed. The rotary valve includes a generally elongated valve body having first and second ends and a longitudinally extending axis of rotation. The rotary valve is mounted in a housing positioned above a ... | 09/25/2001 |
| 6257191 | Rotary valve system A complete rotary valve assembly and system is disclosed. The rotary valve includes a generally elongated valve body having first and second ends and a longitudinally extending axis of rotation. The rotary valve is mounted in a housing positioned above a ... | 07/10/2001 |
| 6006714 | Self-sealing rotary aspiration system for internal combustion engines The disclosed aspiration system provides an alternative to poppet valves for motor vehicle and other applications including gasoline, diesel, natural gas or other internal combustion engines. In one embodiment, an aspiration head (30) includes a housing d... | 12/28/1999 |
| 5967108 | Rotary valve system A complete rotary valve assembly and system is disclosed. The rotary valve includes a generally elongated valve body having first and second ends and a longitudinally extending axis of rotation. The rotary valve is mounted in a housing positioned above a ... | 10/19/1999 |
| 5941206 | Rotary valve for internal combustion engine A rotary valve for an internal combustion engine, comprising a cylindrical valve rotor having an inlet and an outlet port arranged in the circumferential surface thereof, and a plurality of sealing elements mounted on the valve rotor such as to subdivide ... | 08/24/1999 |
| 5706775 | Rotary valve apparatus for internal combustion engines and methods of operating same A rotary valve system mounted to an internal combustion engines and method of operating the system primarily comprises a rotary valve mounted within a valve sleeve, which is in turn mounted within a longitudinal bore extending through an intake and exhaus... | 01/13/1998 |
| 5529037 | Lubrication system for rotary valve A rotary valve for an internal combustion engine, of the hollow cylindrical type, characterized in that there are provided in a bore of a cylinder head, in which the valve rotates, oil applicators arranged on either side of openings in the valve, each app... | 06/25/1996 |
| 5526780 | Gas sealing system for rotary valves A rotary valve assembly for an internal combustion engine characterized in that the valve has a combination of axial sealing elements (21,22) and inner circumferential sealing elements (23,24) arranged to form a first seal pressurizing cavity extending ci... | 06/18/1996 |
| 5524579 | Air cooled rotary distribution valve for internal combustion engine A rotary distribution and air cooling valve for combustion and exhaust gases for an internal combustion engine consisting of a tube mounted in a bore within the engine head having a pair of opposed side ports and an internal barrier which acts as an air f... | 06/11/1996 |
| 5315969 | Internal combustion engine with rotary valves An improved internal combustion engine with rotary valves. The engine includes a cylinder head above each cylinder and there is a single opening located in the cylinder head above each piston for use as an intake and as an exhaust port. A rotary valve mem... | 05/31/1994 |
| 5251591 | Rotary valve for an internal combustion engine A valve is comprised of two parallel passageways running transversely through a cylindrical valve shaft. Several valves are spaced axially in the valve shaft. The valve shaft axially rotates in the upper portion of an internal combustion engine. Each of t... | 10/12/1993 |
| 5127376 | Rotary valve shaft A novel rotary valve system is provided which comprises an intake rotary valve shaft and an exhaust rotary valve shaft, each shaft including a passage adapted to deliver fuel to the combustion chamber or remove exhaust gas from the combustion chamber. Eac... | 07/07/1992 |
| 5111783 | Rotary valve system for internal combustion engines A fuel-air compression and timing device for an internal combustion engine of the Ottoman, four-stroke type wherein triangular rotors are in phased relationship with the pistons of the engine to sequence the intake and exhaust strokes and to provide a dou... | 05/12/1992 |
| 5095870 | Rotary valve four-cycle engine An internal combustion engine which includes a combustion head adapted to be bolted to the top of a cylinder block and includes a solid cylindrical rotary valve extending longitudinally in a complementary bore in the head which is parallel to the axis of ... | 03/17/1992 |
| 5081966 | Internal combustion engine with rotary valve assembly An internal combustion engine having a head with valve assemblies for controlling flow of intake and exhaust gases to and from piston chambers. A head plate is located between the head and a block having cylinders accommodating pistons. The head plate has... | 01/21/1992 |
| 5052349 | Rotary valve for internal combustion engine The invention herein is a rotary valve apparatus for a cylinder of an internal combustion engine, containing a valve housing having an internal axial bore and an opening over the combustion chamber, a circumferential bearing positioned within the bore, an... | 10/01/1991 |
| 4879979 | Intake and exhaust system through rotatory ports shaft, in four-stroke motors An intake and exhaust system through rotatory port shafts, in four-stroke motors, through which are suppressed the camshaft, valve tappets, rocker arms and valves of conventional motors. The system is based on a hollow shaft located in a jacket and the wh... | 11/14/1989 |
| 4751900 | Adjustable segmented rotary twin port valve shaft An adjustable rotating valve shaft system for the introduction and exhausting of gases of the internal combustion engine, comprising an adjustable rotating valve shaft driven by the crankshaft, consisting of smaller sections, one or more per cylinder, eac... | 06/21/1988 |
| 4517938 | Rotary valve arrangement In the specific embodiment described herein, a rotary valve for the gas exchange of an internal combustion engine has a rotary member and a housing and a series of circumferential dry-bearing gas-sealing rings and dry surface seals arranged to block leaka... | 05/21/1985 |
| 4370955 | Rotary valve for an internal combustion engine A rotary valve for an internal combustion engine comprises an outer stationary support member formed with a hollow interior, an inner valve member housed within the hollow interior, and bearing means supporting the valve member for rotation about an axis ... | 02/01/1983 |
| 4342294 | Rotary engine valve with improved seals and lubrication system A shaft-type valve means for an internal combustion engine of the type having a block in which there is a cylinder and a piston reciprocal in the cylinder wherein the chamber is covered by a head and an improved valve is in the form of a shaft journaled i... | 08/03/1982 |
| 4116189 | Internal combustion engine An internal combustion engine has a plurality of cylinders arranged in rows in an engine block, with reciprocable pistons in the cylinders. A cylindrical valve housing chamber is defined in the block over each row of cylinders and communicates with the cy... | 09/26/1978 |
| 4019488 | Rotary valve engine with lubricator A rotary valve engine in which the rotary valve is located laterally of the cylinder and includes straight longitudinally extending, concentrically arranged intake and exhaust passages for unrestricted flow of air or combustible mixture into the cylinder ... | 04/26/1977 |
| 3990423 | Rotary valves In a rotary valve controlling the inlet of fuel to, and exhaust of combustion products from, a combustion chamber, an improved seal is achieved by providing rigid upstanding lips in the valve housing about the opening of the housing into the combustion ch... | 11/09/1976 |
| 3964450 | Rotary cam internal combustion radial engine This disclosure is directed to a rotary-cam, internal-combustion, radial, 4-cycle, 6-cylinder engine comprising a stationary motor block adapted to operably receive a dual set of pistons, each set thereof being juxtaposed to the other, having their respec... | 06/22/1976 |