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US 6,725,519 B2Granted
Method of fabricating a gas tank
OwnerKyle P. Krejciinventor
Life of this patent
Estimating the term…
Abstract
A method of making a gas tank includes hydroforming two halves and welding the halves together. Two types of welds are used in welding the two halves together, tack welds for holding the two halves together, and stitch welds to complete the welding of the two halves. Additional steps are taken prior to the finishing stitch welds. Reinforcement is added where necessary. Double tanks, for both gasoline and oil, are also fabricated by essentially the same method steps.
Claims19
A method of making a gas tank comprising the steps of:
- providing a quantity of at least sixteen gauge steel;
- hydroforming two side halves of the gas tank from the provided at least sixteen gauge steel;
- tack welding the two side halves together,
- cutting out a portion of the tack welded side halves for a bottom tunnel;
- forming the bottom tunnel;
- welding the formed bottom tunnel to the two side halves;
- forming a bottom rear end piece;
- welding the formed bottom rear end piece to the two side halves;
- and
- welding the tacked side halves to form a tank.
7 more elements
A method for making a motorcycle gas tank comprising the steps of:
- providing a quantity of at least sixteen gauge steel;
- hydroforming two side halves for the tank from the provided at least sixteen gauge steel;
- tack welding the two side halves together;
- cutting out a portion of the welded side halves for a bottom tunnel;
- forming a bottom tunnel;
- welding the formed bottom tunnel to the two side halves;
- and
- welding the tacked side halves to form a tank.
5 more elements
Dependencies are inferred from the claim text.