Bizarre Patents
A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
PatentStorm News
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 |
| 7305952 | Engine valve clearance adjusting method A technique which allows an unskilled person to simply adjust a tappet clearance in an engine valve sometimes has a problem in that it can inaccurately adjust clearance because the abutment seat of a magnescale for detecting displacement is not a rocker arm itself a... | 12/11/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7146953 | Mechanical valve play compensation element for a valve drive on a piston combustion engine The invention relates to a mechanical valve play compensation element for a valve drive on a piston combustion engine, comprising a first pressure part (1) which is axially displaceable in relation to a second pressure part (2) and which is fixed in su... | 12/12/2006 |
| 7140291 | Oil-free/oil-less air compressor with an improved seal An oil-free/oil-less air compressor with a piston positioned for reciprocating in a bore, the piston having a first piston ring assembly made from a rigid, high temperature polymer, and a second piston ring assembly comprising a first portion that engages the bore, ... | 11/28/2006 |
| 7134410 | Detachable connection for coupling a gas exchange valve of an internal combustion engine to an actuator Disclosed is a simple, easy-to-produce, and reliable connection between a shaft of a gas exchange valve and an actuator. This connection is detachable and, as a result, can be connected and disconnected multiple times. It is also possible to dispose the coupling pie... | 11/14/2006 |
| 7036475 | Lash adjuster for valve gear In a lash adjuster of a valve gear which employs a serration-shaped thread mechanism, the formation of a tribochemical reactive film is suppressed by using as the materials for its adjuster screw and nut member (or the materials for their thread surfaces) materials ... | 05/02/2006 |
| 7013855 | Lash adjuster for valve actuator A lash adjuster in a valve actuator includes a lifter body having an end plate having its top surface in contact with a cam and formed with a threaded hole in its bottom surface. An adjuster screw is inserted in the threaded hole with its external thread in engageme... | 03/21/2006 |
| 7007648 | Oil passage structure for engine To provide an oil passage structure for an engine in which a tensioner arm is in sliding-contact with a cam chain for speed-reducing a rotational power of a crankshaft by half and transmitting the resultant power to camshafts for driving an intake valve and an exhau... | 03/07/2006 |
| 6901896 | Arm type valve gear For an arm type valve gear in which a lash adjuster is mounted between an arm pivoted by the rotation of a cam and a valve stem, it is a goal to reduce the axial length of the lash adjuster and to suppress wear at the contact portion with the valve stem. An engaging... | 06/07/2005 |
| 6899071 | Lash adjuster for valve actuator A lash adjuster is provided which can maintain stable valve lift. An adjuster screw is mounted into a threaded hole formed in the bottom of the end plate of a lifter body. An elastic member is mounted in the threaded hole to bias the adjuster screw axially downwardl... | 05/31/2005 |
| 6729288 | Lash adjuster for use in valve gear A lash adjuster is provided which can keep a constant valve lifting amount. An adjust screw is brought into threaded engagement in a threaded hole formed in the bottom surface of an end plate of a lifter body. The adjust screw is biased in the axial direction by an ... | 05/04/2004 |
| 6109228 | Valve lifter A valve lifter includes a guide cap mounted between a cam and the top end of a valve stem and which is slidably supported so as to be capable of moving in the axial direction. The guide cap has an end wall formed with a threaded through-hole. An adjusting... | 08/29/2000 |
| 6032630 | Valve lifter A direct valve drive device which can open and lose a valve with accuracy even if a negative valve clearance forms between the cam and the valve stem due to a difference in thermal expansion coefficient between the cylinder head made of aluminum alloy and... | 03/07/2000 |
| 5003940 | Quick adjust tappet assembly An inverted cup follower is fitted in a bore of the cylinder head of an internal combustion engine in line with the upright stem of an intake or exhaust valve. Such follower has a threaded central bore receiving a complementally threaded plug. The plug ha... | 04/02/1991 |
| 4981117 | Automatic clearance adjuster A mechanical automatic clearance adjuster (10) of the type comprising a screw (24) of generally buttress thread form running within an internally threaded housing (22) on running flanks (38,40) under the action of axially directed spring means (26) has th... | 01/01/1991 |
| 4867112 | Method of assembling a valve-lash adjuster for internal combustion engines A valve-lash adjuster has a cylindrical hold screw having a male thread on a periphery thereof and a female thread at an upper portion of a bore thereof, and a cylindrical piston having a female thread at an upper portion thereof. The hold screw is screwe... | 09/19/1989 |
| 4706620 | Automatic clearance adjuster A mechanical automatic clearance adjuster, such as may be used as a valve clearance adjuster in an internal combustion engine, comprises a self-contained mechanism having an internally screw threaded housing (26) within which there is a complementarily th... | 11/17/1987 |
| 4561392 | Girdle assembly for stud mounted rocker arms A girdle assembly for stud mounted rocker arms particularly adapted for use in racing engines wherein it is desired to unify the valve stud structure to prevent stud fatigue failure and adverse harmonics. The valve adjustment mechanism is provided by barr... | 12/31/1985 |
| 4548168 | Threaded tappet adjuster An automatic tappet adjuster for a valve operating mechanism has two components 12, 14 with co-operating buttress thread form screw threads 32. The axial free play in the threads 32 sets the valve clearance. Excess clearance 56 is taken up by movement of ... | 10/22/1985 |
| 4469057 | Poppet valve spring retainer with integral mechanical adjustable tappet A device of the type for the adjustment of the gap between the valve stem and rocker arm or cam shaft of an internal combustion engine having a lower valve spring retainer base and upper cap member with adjustment means associated therewith incorporating ... | 09/04/1984 |
| 4321894 | Poppet valve spring retainer with integral mechanical adjustable tappet A device for the adjustment of the gap between the valve stem and rocker arm or cam shaft of an internal combustion engine having a lower valve spring retainer base and upper cap member with adjustment means associated therewith.... | 03/30/1982 |
