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Patent

Method of preparing hydroformed metallic golf club shafts

TLDR
In this article, a method for preparing a golf club shaft, set of shafts, or golf clubs having shafts which have been produced by a process that includes a hydroforming step is presented.
Abstract
Method for preparing a golf club shaft, set of shafts, or golf clubs having shafts which have been produced by a process that includes a hydroforming step. By utilizing a hydroforming prosses step, a metal or metal matrix composite golf club shaft can be formed into a variety of configurations or shapes heretofore not possible and can include hydroformed ornamental design features.

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Patent

Method and apparatus for the exploitation of piezoelectric and other effects in carbon-based life forms

Timothy Winey
TL;DR: In this article, a bi-directional holographic transducers between the acoustic and electromagnetic domains was proposed to promote piezoelectric effects in carbon-based life forms using specific geometries, ratios, frequencies and combinations therein using associated vibrational states functioning in part, as bi-dimensional transducers.
Patent

Multi-thickness tube for hydroformed members

TL;DR: In this paper, a contiguous tubular member including at least one of a first material or a second material is provided, so that the tubular members has a wall thickness that varies along the length of the tube.
Patent

Methods for making a bicycle frame part having a disproportionally enlarged end section

K. U. Wu
TL;DR: A bicycle frame part having a disproportionally enlarged end section and a method for making the same can be found in this article, where the method may include disproportionally enlarging an end section of an aluminum alloy tube of a bicycle frame.
Patent

Hydroformed metallic golf club shafts and method therefore

TL;DR: In this article, a metal or metal matrix composite golf club shaft can be formed into a variety of configurations or shapes heretofore not possible and can include hydroformed ornamental design features.
Patent

Multi-stage tube forging method for disproportionally enlarging an end section of an aluminum alloy tube of a bicycle frame part

K. U. Wu
TL;DR: In this article, a multi-stage tube forging method for disproportionally enlarging an end section of an aluminum alloy tube of a bicycle frame part is described, which involves drawing the tube to form a thin section and a thick end section, and then enlarging the cross-section of the thick end sections of the tube by forging the tube in such a manner that the wall thickness after being enlarged is substantially the same as that of the thin section.
References
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Patent

Hydroformed tubular member and method of hydroforming tubular members

TL;DR: Tubular members for use in vehicle frames are easily and economically produced using a hydroforming process in which a high pressure fluid is presented to the interior of a tubular member, thus causing the tube to expand to meet the interior walls of a forming die as discussed by the authors.
Patent

Apparatus and method for forming a tubular member

TL;DR: In this article, an apparatus and method for forming a one-piece complex-shaped tubular member from a tubular blank is described, which is placed in a die cavity defining a tube having at least two expanded portions and a bend therein.
Patent

Method of manufacturing a golf shaft of complex shape by internal bladder pressurization

TL;DR: In this paper, an improved apparatus for manufacturing a reinforced golf club shaft having a complex shape is presented, where an inflatable bladder is positioned over a mandrel having a simple shape.
Patent

Method of producing front axles for industrial vehicles

TL;DR: In this paper, a method of hollow front axles industrial vehicles including the steps of fluoforming a tubular blank to obtain an intermediate product having reduced-diameter ends, crushing the intermediate product to obtain a central portion of elongated section and bent intermediate portions, and finishing the axle by hydroforming.
Patent

High pressure hydroforming press

TL;DR: In this paper, an apparatus for hydroforming a tubular metal blank has a die structure (12), a hydroforming fluid source, a hydraulically driven tube-end engaging structure (36), and a single hydraulic power source (22).