Title of Invention

" PLANT ANIMAL DRAWN ZERO-TILL FERTI-SEED DRILL"

Abstract This invention relates to an improved animal drawn ferti-seed drill for sowing in no tillage condition -comprising of main frame (PD-1) with depth control wheel at other ends of said beam, -at least two inverted T' type furrow opener (PD-5) fitted to tyne leg (PD-4), -at least one fertilizer cum seed box (PD-2) held to said frame, -at least two seed metering devices, -at least one drive wheel (PD-7) transmits power to seed and fertilizer metering mechanism through chain and sprocket system (PD-9). (Fig. 1)
Full Text FIELD OF INVENTION
This invention relates to a seed drill. In particular, this invention relates to an
animal drawn seed drill.
BACKGROUND OF INVENTION
Seed drill is a machine for placing the seeds in a continuous flow in furrow at uniform rate and at a controlled depth with or without arrangement of covering them with soil. In regions, where human labour and draft animals are the major sources of power, timelines of field operations has been identified as a major constraint in introducing a second crop under rainfed farming. The short time interval between preparing the seedbed after the harvest of the first crop constrains the seeding of a second crop. In regions where lowland rice is planted during the rainy season, tillage operation for seedbed preparation is considered most difficult and time consuming for the next crop. Therefore, the possibility of planting a second crop is limited.
In conventional method, seedbed is prepared by three times harrowing the field followed by planking operation. Thereafter the sowing is done manually or with the help of seed drill. It would be apparent that the period between harvesting of the previous crop and the sowing of a fresh crop is limited, and hence the preparation of seed beds by three times harrowing is time consuming.
QBJECTS OF THE INVENTION
An object of this invention is to propose an improved construction of an animal
drawn zero till seed drill.
Another object of this invention is to propose an improved construction of an animal drawn zero till seed drill, which allows a direct seeding in line without any tillage operation after the harvesting of previous crop.
Yet another object of this invention is to propose an improved construction of an animal drawn zero till seed drill which opens a slit type furrow to an uniform depth.
Still another object of this invention is to propose an improved construction of an animal drawn zero till seed drill, which meters seeds of different size and shape.
A further object of this invention is to propose an improved construction of an animal drawn zero till seed drill, which places the seed accurately and uniformly at the desired depth in soil.A still further object of this invention is to propose an improved construction of an animal draw zero till seed drill, which covers the seed optionally and compact the soil around it to enhance germination and emergence.
Further objects and advantages of this invention will be more apparent from the ensuing description.
STATEMENT OF INVENTION
According to this invention, there is provided an improved animal drawn ferti-seed drill for sowing in no tillage condition characterized in that
- a main frame with depth control wheel at other ends of said beam,
- at least two inverted T' type furrow opener fitted to tyne leg,
- at least one fertilizer cum seed box held to said frame,
- at least two seed metering devices,
- at least one drive wheel transmits power to seed and fertilizer, metering mechanism through chain and sprocket system.
DESCRIPTION WITH REFERENCE TO ACCOMPANYING DRAWINGS
Further objects and advantages of this invention will be more apparent from the ensuing description when read in conjunction with the accompanying drawing and wherein fig, 1 shows a side view of the animal drawn zero till seed drill of the present invention.

Referring to fig.l the frame PD-1 of drill PD-15 is normally made of mild steel angle iron with square box. Two pieces of MS iron flat is joined to the frames of the center with spacing to which wooden beam is connected.
A seed and fertilizer box PD-2 made of mild steel is divided in two compartments of equal size by a M.S. sheet is held to frame PD-1. A depth adjusting wheel and comprising two wheels PD-3 are provided with frame PD-1 for depth control and transportation of drill. Such wheels may be of mild steel sheet. A tyne leg PD-4 prevents shock loads caused by obstructions. The narrow opener is fitted to tyne leg PD-4. A furrow opener PD-5 is provided for opening the furrow. Seeds are dropped in the furrow made by furrow opener. The furrow opener used is an inverted 'T' type furrow opener. By way of example, the rake and relief angle is kept 20° and 5° respectively to make narrow slit without much soil disturbance. The working face and lower portion of furrow opener PD-5 are coated with hard surfacing wear resistant electrode for increasing the total life of said furrow openers. Provision has been made on the frame for adjusting the spacing between the two furrow openers.

A boot PD-6 conveys the seed and fertilizer from the delivery tubes to the furrow. A drive wheel PD-7 transmits power to seed and fertilizer metering mechanism from drive wheel PD-7 with chain and sprocket system PD-9. On the periphery of ground wheel a plurality of lugs at 60° lug angle and equal spacing are provided for better traction.
A seed housing PD-8 depends from frame PD-1 fluted roller picks up the seeds from seed housing PD-8 and delivers them into the seed tube. The upper portion is attached to grain box and lower portion is connected to seed tube.
Sprocket system PD-9 drives a sprocket PD-10 mounted on feed shaft PD-14, which provides power to fluted roller PD-12.
A seed rate controlling lever PD-11 adjusts the exposure length of seed metering device and is made of mild steel. A seed metering device comprising fluted rollers is adjustable to deliver the minimum and maximum range of seed rates. Delivery should be uniform in all the rows of the machine. The number of flutes on the roller are three by way of example. These flutes are equally spaced along the periphery of the roller. The seed from the hopper flows into a feed cup. As the

fluted roller rotates, the seed trapped in the flute is taken out of the cup. Normally, a seed trapped between the roller and the flap is pushed out due to the flow, the regular shape of the seed and the friction between the roller and the other seeds. If the roller is smooth, as in the case of the cut-off type, the flow of trapped seeds is limited after the seed gets settled. The quantity of seed forced out by the roller during one rovolution should be equal to the volume swept by the flutes. Rutted roller are mounted on drive shaft and are driven by drive wheel.
The gravity flwo of fertilizer is controlled by fertilizer rate control lever PD-13.



WE CLAIM;
1. An improved animal drawn ferti-seed drill for sowing in no tillage
condition characterized in that
- a main frame with depth control wheel at other ends of said beam,
- at least two inverted T' type furrow opener fitted to tyne leg,
- at least one fertilizer cum seed box held to said frame,
- at least two seed metering devices,
- at least one drive wheel transmits power to seed and fertilizer, metering mechanism through chain and sprocket system.

2. An improved animal drawn ferti-seed drill as claimed in claim 1, wherein the position of furrow opener on main frame can be adjusted in the range of 100 to 250 mm.
3. An improved animal drawn ferti-seed drill as claimed in claim 1 or 2, wherein the working face and lower portion of said furrow openers are coated with hard surfacing wear resistance electrodes.
4. An improved animal drawn ferti-seed drill as claimed in any of the preceding claims wherein the depth control wheel is held to a shaft.
5. An improved animal drawn ferti-seed drill for sowing in no tillage condition substantially as herein described and illustrated.

Documents:

1675-DEL-2005-Abstract-(01-06-2009).pdf

1675-del-2005-abstract.pdf

1675-DEL-2005-Claims-(01-06-2009).pdf

1675-del-2005-claims.pdf

1675-DEL-2005-Correspondence-Others (13-01-2010).pdf

1675-DEL-2005-Correspondence-Others-(01-06-2009).pdf

1675-DEL-2005-Correspondence-Others-(03-06-2009).pdf

1675-del-2005-correspondence-others.pdf

1675-del-2005-correspondence-po.pdf

1675-DEL-2005-Description (Complete)-(01-06-2009).pdf

1675-del-2005-description (complete).pdf

1675-DEL-2005-Drawings-(03-06-2009).pdf

1675-del-2005-drawings.pdf

1675-del-2005-form-1.pdf

1675-del-2005-form-18.pdf

1675-DEL-2005-Form-2-(01-06-2009).pdf

1675-del-2005-form-2.pdf

1675-DEL-2005-Form-3-(01-06-2009).pdf

1675-del-2005-petition-138.pdf


Patent Number 242551
Indian Patent Application Number 1675/DEL/2005
PG Journal Number 36/2010
Publication Date 03-Sep-2010
Grant Date 01-Sep-2010
Date of Filing 28-Jun-2005
Name of Patentee G.B. PANT UNIVERSITY OF AGRICULTURE & TECHNOLOGY
Applicant Address INDIAN UNIVERSITY OF PANTNAGAR-263 145, UTTARANCHAL ,INDIA.
Inventors:
# Inventor's Name Inventor's Address
1 DR. MRIGENDRA PRATAP SINGH G.B. PANT UNIVERSITY OF AGRICULTURE & TECHNOLOGY, PANTNAGAR-263 145, UTTARANCHAL ,INDIA.
2 DR. JAYANT SINGH G.B. PANT UNIVERSITY OF AGRICULTURE & TECHNOLOGY, PANTNAGAR-263 145, UTTARANCHAL ,INDIA.
PCT International Classification Number A01B 51/04A
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA