Bizarre Patents
Hands free towel carrying system
A hands free towel carrying system for coupling a towel to a user to prevent loss, theft or contamination.
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 |
| 7451687 | Hybrid nutating pump A nutating pump for creating pressure or a vacuum. The nutating pump includes a housing with a center support positioned within said housing. The center support includes a semi-spherical recess. The pump also includes a drive shaft adapted to be connected to an elec... | 11/18/2008 |
| 7322801 | Compact linear air pump and valve package A compact air pump and valve package includes pump and valve assemblies integral with a pressure housing defining inlet ports and a plurality of fittings for connecting air lines to an interior of the pressure housing. The linear diaphragm pump assembly has a perman... | 01/29/2008 |
| D549820 | Aspirator base jar bracket | 08/28/2007 |
| D549320 | Aspirator base console | 08/21/2007 |
| 7220109 | Pump cylinder seal A compact opposed piston pump minimizes axial spacing between its pistons on the drive shaft and thereby reduces the shaking couple and noise from reciprocation. Each piston has its own eccentric element press-fit into the connecting rods so as not to occupy space b... | 05/22/2007 |
| D532796 | Pump port | 11/28/2006 |
| 7117781 | Piston balancing system A piston pump or compressor has a dynamically balanced drive assembly in which nearly all of the rotational, oscillatory and axial forces on the rotating drive shaft are canceled. The piston is primarily balanced by adding an oscillating counter weight mounted to th... | 10/10/2006 |
| D524327 | Pump | 07/04/2006 |
| D510938 | Pump | 10/25/2005 |
| 6916157 | Clam shell pump housing defining passageways and a sealed pressure or vacuum chamber A pump has a motor pump unit enclosed by clam shell housing sections. The pump moves a working fluid through the housing to an outside load. Each section has intake walls defining a portion of an intake chamber and outlet walls defining a portion of an outlet chambe... | 07/12/2005 |
| 6896721 | Motor start-up unloading in an oxygen concentrator An oxygen concentrator is controlled during start-up to rapidly shuttle the sieve beds between communication with the pump and atmospheric pressure, so the pressure in the sieve beds is relieved while the pump motor is starting up. After the start-up period, the sie... | 05/24/2005 |
| 6860754 | Lead retention bushing A conductor lead and power cord retention system for a compressor/pump has a unique bushing for capturing and pinching the cord in an opening in the pump housing. The bushing has a leading end defining an open-ended slot. The bushing slides into a pocket in the hous... | 03/01/2005 |
| 6832900 | Piston mounting and balancing system A compact 180° opposed piston pump/compressor minimizes axial spacing between its pistons on the drive shaft and thereby reduces the shaking couple and noise from reciprocation. Each piston has its own eccentric element press-fit into the connecting rods so as not ... | 12/21/2004 |
| 6790019 | Rotary vane pump with multiple sound dampened inlet ports A rotary vane pump has an open ended pump cylinder mounting a drive motor at one end and a ported end plate and sound chamber at the other end. The cylinder contains a rotor mounted to an eccentric drive shaft and having vane grooves receiving slidable vanes contact... | 09/14/2004 |
| 6779991 | Axial piston pump A nebulizer pump includes an axial cylinder and piston arrangement and an electromagnet having a stator and an armature that drives the piston to reciprocate within the cylinder. The pump housing has a unitary partition defining an exhaust chamber in combination wit... | 08/24/2004 |
| 6755445 | Fitting A fitting for coupling a pump attachment to the inlet or discharge port of a pump or compressor has an annular body with an externally threaded nipple at one end and a circular flange at the other end. An axial aperture extends between the ends through openings at t... | 06/29/2004 |
| 6733248 | Fluid pumping apparatus A pump has wobble pistons rigidly connected to arms of a nutating plate that is mounted on a bearing eccentrically mounted to a drive shaft by a counterweight. The piston assembly is nearly perfectly balanced by the counterweight due to its precisely defined moment ... | 05/11/2004 |
| D488820 | Pump | 04/20/2004 |
| 6692240 | Cylindrical pump housing with a fan guard mounted on each end of the housing with snap tabs engaging housing recesses A pump housing (14, 16) has a fan guard (40) secured to the end of the housing by four crescent-shaped tabs (60) fitting into four crescent-shaped cast-in recesses (66) of the housing (14, 16) and ears (68) of the tabs (60) fitting into cast-in holes (70)... | 02/17/2004 |
| 6485266 | Compressor assembly with deflector A compressor assembly which includes a housing having an air inlet. A cylinder sleeve having an end open into the housing receives a piston disposed in the housing. The piston extends into the cylinder sleeve open end for reciprocal movement in the sleeve... | 11/26/2002 |
| 6450777 | Fluid pumping apparatus An axial piston fluid pumping apparatus is disclosed in which wobble pistons are rigidly connected to arms of a nutating plate that is rotatably mounted on a bearing which is mounted on a drive shaft. The axis of the bearing is at an acute angle to the ax... | 09/17/2002 |
| 6443713 | Diaphragm pump with support ring Disclosed herein is a wobble diaphragm pump having a housing with an open neck. A wobble piston can be passed through the open neck and fit onto the pump motor shaft. A separate support ring is fastened to the housing to close the open neck and provide a ... | 09/03/2002 |
| 6401594 | Connecting rod with integral grease reservoir A connecting rod including a generally vertical oriented rod section having a piston end and a connecting end. A non-through bore formed in the connecting end receives a pin mounted eccentrically on a shaft, such that rotation of the shaft causes the rod ... | 06/11/2002 |
| 6390790 | Vacuum pump with motor cooling A vacuum pump has a housing enclosing a pump mechanism. The pump mechanism has an electrical motor enclosed in a motor chamber. Air pumped by the pump mechanism is exhausted into the enclosed motor chamber to cool the motor and then exhausted out of the m... | 05/21/2002 |
| 6331101 | Two-cylinder pump A two-cylinder air compressor has a motor with a through drive shaft. Identical housings are provided at each end of a cylindrical spacer sleeve that surrounds the motor. The housings include cylinder housing extensions each of which mounts a cylinder sle... | 12/18/2001 |
| 6327961 | Connecting rod with integral grease reservoir and bleed hole A connecting rod including a generally vertical oriented rod section having a piston end and a connecting end. A non-through bore formed in the connecting end receives a pin mounted eccentrically on a shaft, such that rotation of the shaft causes the rod ... | 12/11/2001 |
| 6254357 | Fluid pumping apparatus An axial piston fluid pumping apparatus is disclosed in which wobble pistons are rigidly connected to arms of a nutating plate that is rotatably mounted on a bearing which is mounted on a drive shaft. The axis of the bearing is at an acute angle to the ax... | 07/03/2001 |
| 6227821 | Two-cylinder pump A two-cylinder air compressor has a motor with a through drive shaft. Identical housings are provided at each end of a cylindrical spacer sleeve that surrounds the motor. The housings include cylinder housing extensions each of which mounts a cylinder sle... | 05/08/2001 |
| 6193475 | Compressor assembly A compressor assembly including a motor having a rotatable shaft, and a bracket attached to the motor. The bracket has fingers extending substantially perpendicular to the shaft. The fingers having ends with engagement surfaces. A connecting rod has a con... | 02/27/2001 |
| 6135144 | Pressure relief valve assembly A pressure relief valve assembly for relieving fluid pressure in an exhaust outlet includes a deformable fluid passage in fluid communication with the exhaust outlet. The passage is blocked by a poppet disposed in the passage for discouraging fluid firm p... | 10/24/2000 |
| 6074174 | Fluid pumping apparatus An axial piston fluid pumping apparatus is disclosed in which wobble pistons are rigidly connected to arms of a nutating plate that is rotatably mounted on a bearing which is mounted on a drive shaft. The axis of the bearing is at an acute angle to the ax... | 06/13/2000 |
| 6062540 | Double seal drain cock A drain cock device for venting or draining gas or liquid from a pressurized vessel, such as an air compressor, that provides occlusive closure of an opening in the pressurized vessel. When the drain cock is in an open position, gas or liquid may exit the... | 05/16/2000 |
| 6056521 | Two-cylinder air compressor A two-cylinder air compressor has a motor with a through drive shaft. Identical housings are provided at each end of a cylindrical spacer sleeve that surrounds the motor. The housings include cylinder housing extensions each of which mounts a cylinder sle... | 05/02/2000 |
| 5970844 | Cylinder sleeve assembly A cylinder sleeve is composed of multiple identical interlocking sleeve elements. Each sleeve element has a circular cylindrical portion and an integral circular arc portion tangent to the cylindrical portion. The circular arc portion has a boss on one en... | 10/26/1999 |
| 5890879 | Mounting for air compressor A motor and reciprocating piston assembly is mounted in housing halves using elastomeric mounting members interposed between the assembly and each half. There are three spaced sleeve-like mounting points on each side of the assembly and three similarly sp... | 04/06/1999 |
| 5718571 | Valve assembly A valve assembly for a pumping apparatus includes a cylinder sleeve having a head end with inlet and outlet ports surrounded by a recess. An elastomer seal element is received in the recess and includes a peripheral portion that encircles the ports and a ... | 02/17/1998 |
| 5644969 | Wobble piston and cylinder arrangement A wobble piston usable in a cylinder comprising one or both of the confronting surfaces of wobble piston head or valve plate being convexly curved in the plane of the wobble motion and being straight in a plane that is transverse to the plane of the wobbl... | 07/08/1997 |
| 5593291 | Fluid pumping apparatus A fluid pumping apparatus is disclosed in which wobble pistons are rigidly connected to arms of a swashplate that is rotatably mounted on bearings which are mounted on a drive shaft. The axis of the bearings is at an acute angle to the axis of the shaft. ... | 01/14/1997 |
| 5456287 | Compressor/vacuum pump reed valve Intake or exhaust reed valves of a compressor or vacuum pump have T-shaped flappers which are received in similarly T-shaped pockets so as to be substantially flush with the valve plate. A dirt trap groove is formed in each pocket adjacent to the hinge li... | 10/10/1995 |
| 5327932 | Valve restraint enhancement A valve plate assembly is provided with a valve restraint for maintaining a valve within a recessed portion of the valve plate. The valve restraint further includes an irregular surface which contacts the surface of the valve when the assembly is in use, ... | 07/12/1994 |
