# US 7,607,337 B2 · Two-way linear/dynamic force multiplying device

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- Number: US 7,607,337 B2
- Document ID: US7607337B2
- Status: Granted
- Kind: B2
- Application number: 12/066,156
- Filed: 2006-09-21
- Published: 2008-10-30
- Granted: 2009-10-27
- Earliest claimed: 2005-09-22
- Inventors: Serafim Félix Da Silva
- Web page: https://patentgrep.com/patent/US7607337B2

## CPC

- F03G 7/10: Alleged perpetua mobilia (using hydrostatic thrust F03B17/04)
- F03G 7/08: recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
- F03G: SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR (arrangements in connection with power supply in vehicles from force of nature B60K16/00; electric propulsion with power supply in vehicles from force of nature B60L8/00)

## Abstract

That uses the weight of an electric car (1) that runs along a lopsided lever (2), that is, a lever that is larger one side than on the other, with a chain (3) fastened to the smaller side, to transfer the force generated by the weight of the car (1) when it is at the end of the larger side of the lever (2) to a main shaft (5) that moves clockwise and, in turn, moves a return counterweight (8) linearly.

## Claims

### Claim 1

A two-way linear/dynamic force Multiplying device, comprising:
a support,
a lever having two opposite ends and pivoted at a point intermediate said two opposite ends on said support,
a counterweight car movable along said lever, said counterweight car having an electrical motor for driving said counterweight car along said lever,
a return counterweight movable between a raised position and a lowered position,
a latch for releasably latching said return counterweight at said lowered position,
a ratchet rotatably mounted to said support by a main shaft,
a pulley rotatably mounted on said support adjacent said ratchet, and
a chain having one end connected with one end of said lever and extending around said ratchet and said pulley and having an opposite end connected with said return counterweight.

### Claim 2 (depends on 1)

A two-way linear/dynamic force multiplying device according to claim 1, wherein a linear force of the car running along the lever is multiplied and transformed into a dynamic force through the main shaft.

### Claim 3 (depends on 2)

A two-way linear/dynamic force multiplying device according to claim 2, wherein the dynamic force is multiplied and transformed into a linear force.

### Claim 4 (depends on 1)

A two-way linear/dynamic force multiplying device according to claim 1, wherein the latch releases the return counterweight at a pre-timed moment.