Form -2
THE PATENT ACT, 1970
(39 OF 1970)
AND
The patent rules, 2003
PROVISIONAL / COMPLETE SPECIFICATION
(See Section 10, rulel3)
1. TITLE OF THE INVENTION: PENDULUM GENERATOR
2. APPLICANT

a) Name : PUTHIYA VEETIL SUJAY KUMAR
b) Nationality: INDIAN
a) Address: A-2 / 503, Swastik Garden, Pokhran Road No. 2, Thane (w), Maharashtra, India-400 610
COMPLETE SPECIFICATION
The following specification describes the invention.
This invention relates to the generation of electricity using the principle
motion of pendulum, conversion of the same in to rotational motion and the
principle that all the masses are attracted towards earth's surface due to
gravity.
Electricity has become one of the most essential things for mankind. The
electricity requirement is increasing day by day, so is the gap between
production and utilization. It is necessary to produce cheap and continuous
power without any environmental hazards. There are different types of
generation such as Hydro, Thermal, Nuclear, Solar etc. All types of electricity
generation have some drawbacks. For. eg. Hydral power depends on rain water
and dams, large catchments areas are required. In case of nuclear, thermal
powers there are many environmental hazards due to radiations and pollution.
Solar power is not continuous as it depends on sunlight.

Also if the power is generated nearby the place of use, the transmission
and distribution losses can be reduced.
Pendulums have been an effective means for utilizing the momentum of a
falling weight. Pendulum is very efficient. Once it starts oscillating very little
additional energy input is needed to overcome various forms of frictions, to
keep the pendulum in motion. When a mass kept at a height tied at one end is
allowed to fall and allowed to oscillate like a pendulum, it will start oscillating.
But due to different forces of friction the pendulum does not reach the
original position after each oscillation and the velocity of the oscillation
reduces. After some time the oscillating movement will stop. The back and
forth oscillation of pendulum results in direction changes sufficient to drive a
clock work, but the pulsating rotation of the axle/shaft are not well suited for
driving a generator, driving a pump or the like.
US Patent NO. 20070012518, dt. 18-Jan-2007, "Gravity Generator" by
Maximo Gomez-Nacer and US Patent No20040196741, dt. 7-Oct-2004,
"Pendulum system for producing Light and power " by Christian burr are
utilizing the principle of oscillating motion of pendulum for electricity
generation.
Indian Patent No. 194903, dt-24-07-2009, "Pendulum Vehicle" by Sudhir
Kumar Mukim is utilizing the oscillating motion to run vehicle.
Consequently a need has been felt for providing an improved means of
interfacing between conventional electrical or mechanical power generation
processes and the conversion of pulsating movement of pendulum to rotational
movement, there by enabling a pendulum to become an efficient prime mover
requiring only intermittent impulses of energy input.
SUMMARY OF INVENTION
Pendulum generator is an invention which over comes most of the above
mentioned difficulties. In this pendulum generator, a mass is attached to a
shaft as a pendulum is moved from its minimum height to maximum height at
predetermined speed using DC motor and is allowed to fall due to gravity. Motor
will be switched on only when the speed of rotation falls below predetermined
value during each rotation consuming very small amount of energy and the
rotary motion is produced.

DETAILED DESCRIPTION
In this pendulum generator a pendulum mass of spherical shape or any
other shape attached to a solid, rigid pendulum arm is attached to a shaft, as a
pendulum, is moved from its minimum height, ie.from its resting position with
respect to earth to its maximum height at a predetermined speed using DC
motor. Pendulum is allowed to fall from maximum height due to gravity. After
its free fall from maximum height and when the velocity of the moving
pendulum falls below the predetermined value the DC motor becomes "ON". It
takes over the forward movement and moves the mass to the vertical maximum
height and is again allowed to fall due to gravity. At this stage the DC motor
becomes "OFF". This creates rotational motion and this rotational motion can
be converted into electricity by coupling with generators etc. Also this
rotational motion can be utilized for driving different mechanical equipments.
The DC motor is attached with spur gear IS coupled to internal gear for
the movements of pendulum. DC motor is attached to pendulum at the end of
pendulum after the pendulum mass so that lesser force is required to move the
pendulum. If the gears were near shaft the force required will be much higher.
In case of a pendulum, the period of oscillation of a pendulum remains the same
for a pendulum with fixed length irrespective of its pendulum mass. The
predetermined speed is arrived after considering the different pendulum
equations. In addition to this the type of coupling used, size of pulley, speed
(RPM) of generator etc. are designed considering the predetermined speed of
pendulum generator. DC motor is used due to its excellent speed regulation,
torque characteristic at all types of load condition. Supply to DC motor is
supplied through slip ring assembly attached to the shaft.
By controlling the DC motor speed using Speed sensors such as tachogenerator along with Digital speed controller's the rotational speed can be controlled. The motor is operated only for short periods during each revolution only to provide additional force required to over come frictional and other forces. Since the motor is working intermittently the energy consumed by motor is less compared to energy generated. Rotation of pendulum is continued due to gravity and use of motor.

Ball/Roller bearings are used for supporting the shaft on Vertical
metallic/non metallic support structure. Additional support structures or a
bigger Single Vertical structure will be required in case of larger size
equipments since the Centrifugal as well as mechanical stresses will be much
higher. Internal gear is attached to vertical supporting structure using
Bolting/welding/riveting at different locations as required.
Pulley, Pendulum, Slip rings, Breaks are mounted on common shaft.
Pendulum arm is of a solid, rigid material having sufficient mechanical
strength to hold pendulum in motion along with DC motor. Since there is support
of internal gear, stresses are reduced on pendulum arm and shaft. Weight of
Pendulum mass depends on Horse Power requirement to rotate the Generator or
operate any other mechanical equipment. Higher the Horse Power Requirement
higher will be the weight requirement.
Brakes are provided for stopping the rotation of shaft and brakes are
directly applied on the shaft itself. Disk brakes or Hydraulic breaking
arrangements will be required for bigger size equipments.
V belt Pulley is attached to shaft. The size of the pulley depends on speed
(RPM) of generator. This V belt pulley is coupled to Generator of required
capacity using V belts. Chains or other types coupling can also be used.
Batteries along with battery chargers or standby electric supply from
external sources will be required to start the DC motor in case of large size
equipments. In smaller equipments manual starting also can be done.
BRIEF DESCRIPTION OF DRAWINGS.
FIG-01 is front view of Pendulum Generator FIG-02 is side view of Pendulum Generator.
DETAILED DESCRIPTION OF THE DRAWINGS
In my invention of Pendulum Generator, a vertical metallic/nonmetallic
structure (5) having sufficient capacity to hold the entire weight and to over
come the mechanical, centrifugal stresses supports the whole equipment. There
will be additional supports (13) or single large structure in case of larger size
equipments. The Vertical structure is fixed to the mounting base / foundation
(7) of sufficient strength.

The pendulum arm (6) is attached to the shaft (12) and the shaft is
inserted through ball/roller or any other suitable bearing/s (9). An internal
gear (4) is attached to the pillar (5) using bolts/welding/riveting (11). A DC
motor coupled with spur gear (2) is attached at the end of pendulum mass (14)
which is coupled to internal gear (4).
Slip rings (8) are also attached to the shaft (12) which is required for
giving supply to the DC motor (2). Batteries along with battery chargers (17)
or stand by electric supply from external source is required for starting and
intermittently running DC motor. Speed sensors along with Digital speed
controller (16 ) detects the speed and speed is controlled using the controller,
Generator/s (3) is/are coupled with pulley (1) which is attached to the
common shaft using belts / chains (10) etc. When the shaft rotates the
generator also rotates generating electricity. Part of the supply will be used
for charging the stand by batteries.

CLAIMS
I claim
1) A pendulum Generator comprises of a pendulum mass (14) of spherical or any other shapes supported by solid pendulum arm(6) is attached to a metaliic/non metallic shaft (12) having sufficient mechanical strength to overcome the stresses due to mechanical, centrifugal forces supported on bearings (9) inside vertical structures (5) of sufficient height to accommodate the entire structure and sufficient mechanical strength on both sides, is mounted on foundation (7), a DC motor coupled with spur gear(2) mounted at the end of the pendulum mass (14) is coupled to internal gear (4)which is attached to the support structure (5),
2) A Pendulum Generator as in the preceding claim 01, further comprising a slip ring assembly (8), attached to shaft (12), pulley (1) attached to shaft couples with generator (3) using belts (10) or other methods of coupling.
3) A Pendulum Generator as in the preceding claim 01, further comprising brakes (15) attached to shaft (12) or separate disk brakes depending on the weight of the pendulum mass and operating speed
4) A Pendulum Generator as in the preceding claim 01, further comprising speed sensors (16) fitted at supporting structure or any other suitable location, or tachogenerator coupled with DC motor or shaft or generator or pulley for DC motor control, along with digital speed controller,
5) A pendulum Generator as in the preceding claim 01 further comprising Batteries along with battery chargers or other sources of standby electric
supply.
6) A Pendulum Generator as in the preceding claim 01, further comprising a Generator/ alternator (3) for generating electricity.
7) A Pendulum Generator as in the preceding claim 01, further comprising a mechanism to utilize the rotational motion to run equipments
8) A pendulum Generator as in the preceding claims 01 to 07 principle of conversion of oscillatory motion in to rotational motion.