Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 7328882 | Microfluidic modulating valve A valve is provided that can selectively change the size of a flow channel in a valve in order to modulate the fluid flow through the valve. In one illustrative embodiment, the valve includes a housing that defines a cavity, with an inlet and an outlet extending int... | 02/12/2008 |
| 6902011 | Variable torque impact wrench Disclosed herein is a fluid control system for varying the power available to a fluid powered tool, a hydraulically driven impact wrench. The system disclosed herein varies power available to the tool by use of a bypass mechanism that is downstream of a directional ... | 06/07/2005 |
| 6902704 | Injection pump assembly for a combinatorial reactor and related method An injection pump assembly 10 in a chemical delivery system for simultaneously delivering reagents into a combinatorial reactor system having multiple injectors. The assembly 10 has a plurality of injectors 12, each injector 12 being in f... | 06/07/2005 |
| 6722439 | Multi-positioned sliding sleeve valve A downhole choke in the form of a sliding sleeve valve operable in a plurality of positions including fully open, fully closed, and positions in between, is disclosed. It features a hydraulic control system that, in one embodiment, provides the motive force to move ... | 04/20/2004 |
| 6446935 | Valve device with elevated mounting pads A valve includes a chamber having an inlet, an outlet, and an annular recess. A movable element is disposed in the chamber to control the flow of fluids between the inlet and the outlet. A stem is secured to a movable element and extends exteriorly throug... | 09/10/2002 |
| 6093086 | Polishing head release mechanism The present invention provides a method of manufacturing an integrated circuit using a polishing head release mechanism. The polishing head release mechanism is for use with a polishing tool having a polishing head and a polishing platen. In one embodimen... | 07/25/2000 |
| 5524525 | Rotary servo valve and guidance system apparatus for controlling the same A guidance control system for trailing implements attached to a tractor is disclosed. The system can function to steer the implement in a row crop, for example, and can also steer the tractor. A proportional servo valve having a rotatable spool is disclos... | 06/11/1996 |
| 5386966 | Rotary slide valve for metallurgical vessels A rotary slide valve for controlling the flow of molten material from a discharge opening of a holding vessel into an inlet of a rotatable casting mold has three valve plates which are in face-to-face contact. A first valve plate at the inflow side of the... | 02/07/1995 |
| 4951711 | Multiway cock A multiway cock has a housing with three separate pipe connections disposed in a T-shaped arrangement. A spherical cock plug is located within the housing. Two bearing bosses are provided on the housing offset by 90° relative to one another for providing... | 08/28/1990 |
| 4633977 | Manual override control handle selectively engageable with the valve spool of a servo valve A hydraulic control valve including an override control lever and an improved construction for selectively connecting the control lever to the valve spool. The control lever is selectively connected to the valve spool such that, during normal operation of... | 01/06/1987 |
| 4203461 | Freezer door for a soft-serve freezer A freezer door for a soft-serve freezer in which the door has a valve cylinder and a valve member slidable in the cylinder. A valve actuator is pivotally supported in a pair of bearings at the front of the door and the valve actuator is formed in two part... | 05/20/1980 |
