Bizarre Patents
An enclosure for small animals which is wearable on the front or back of an animate being.
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 |
| 7921817 | Internal combustion engine An internal combustion engine is provided. Facing pistons eliminate a cylinder head, thereby reducing heat losses through a cylinder head. Facing pistons also halve the stroke that would be required for one piston to provide the same compression ratio, and the engin... | 04/12/2011 |
| 6189493 | Torque balanced opposed-piston engine An internal combustion engine having first and second synchronized subassemblies. The subassemblies are synchronized by a mechanical linkage of their crankshafts to provide identical timing between corresponding pistons in the two subassemblies.... | 02/20/2001 |
| 5732668 | Siamese piston arrangement internal combustion engine The present invention provides an internal combustion engine using one or more siamese pairs of pistons, cylinders and connecting rods to drive two or more independently moving drive shafts. The pairs of pistons first connect to a stabilizing system that ... | 03/31/1998 |
| 5339779 | Piston connection for a reciprocating piston engine A piston suspension for a reciprocating piston engine, especially a prime motor or pump with one or two pistons per cylinder, has for each piston at least three force transmissions, which each consist of connecting rod or thombus and of a crank, wherein t... | 08/23/1994 |
| 5007384 | L-head two stroke engines An L-head two stroke engine comprises two pistons mounted for reciprocable movement in first and second cylinders respectively. The cranks of the two pistons are drivably connected such that the pistons are in phase. A fuel/air supply is provided for one ... | 04/16/1991 |
| 4359017 | Internal combustion engine An internal combustion engine operating on a two-stroke cycle and including a piston 1 reciprocable in a cylinder 2 to drive a crank shaft and also to inhale and compress a volume of air is characterized by a second piston 15 working in a separate cylinde... | 11/16/1982 |
| 3970057 | Internal combustion engine An internal combustion engine comprises a housing having two cylinders formed therein, a combustion chamber between the two cylinders, and two crankcases. The cylinders are angularly disposed with respect to one another in a V shape with the combustion ch... | 07/20/1976 |
