|
Match
|
Document |
Document Title |
|
|
6098259 |
Apparatus for continuously producing jingling bells
An apparatus for continuously producing jingling bells includes an upper mold plate and a lower mold plate. The upper mold plate includes a number of punch pins for punching a material web into...
|
|
|
5727413 |
Process for hot forming hollow spherical bodies
A process for forming a hollow spherical body and the spherical structure so formed. The forming includes a first phase in which a blank is provided with a half having a spherical outer surface, a...
|
|
|
5659956 |
Process for the production of hollow ball bearings
Hollow ball bearings of improved strength and uniformity are produced by causing identical first and second hemispheric units to rotate at different speeds in facing relationship upon a common...
|
|
|
5161798 |
Toy ball and method of making it
A toy ball having a soild body of foam plastic material and a noisemaker completely embedded within the foam plastic body. The noise maker includes a hollow rigid housing, which may be formed of a...
|
|
|
5070610 |
Method of making game device
The game device includes a hollow outer ball and a small relatively heavy mass inside the ball. The mass is a flexible bladder which contains a liquid. When the ball is rolled or projected, the...
|
|
|
3774280 |
METHOD OF FABRICATING HOLLOW BALLS FOR USE IN ROLLING CONTACT BEARING APPLICATIONS
Means for fabricating a seamless hollow ball by initially spin-forging a metal tube into a non-spherical structure that is hollow and closed except for a pair of equatorial or diametral openings,...
|
|
|
3772750 |
METHOD OF HOLLOW BALL FABRICATION
A method of manufacturing a hollow sperical object such as a hollow ball bearing wherein two hemispherical sections are united. The sections are formed with hollow centerpoints and with mating...
|
|
|
3731359 |
APPARATUS AND PROCESS FOR MAKING HOLLOW BALL BEARINGS
The apparatus and process for making hollow ball bearings which comprises means to stamp round metal blanks from flat metal stock, stamping round metal blanks, forming means to form the blanks,...
|
|
|
3660880 |
HOLLOW BEARING BALL AND PROCESS FOR MAKING THEM
A hollow bearing ball formed from a relatively resilient steel by initially stamping a round blank from a strip, drawing the blank, and forging and flowing the drawn blank of metal to subsequently...
|
|
|
3651559 |
MANUFACTURING A SEAMLESS PRESSURE VESSEL
Improved method of manufacturing metallic seamless spherical pressure vessel wherein the vessel is controllably worked and heat treated during fabrication in such fashion that the final vessel has...
|
|
|
3616101 |
BALL OR OTHER ARTICLE OF MANUFACTURE HAVING A LIQUID CENTER
A liquid center for an article and a method for making the same from a liquid reactive mass such as a polyvinyl chloride plastisol by forming the plastisol to spherical shape, e.g., in a mold, and...
|
|
|
3339259 |
Ball construction for ball valves
|
|
|
3274666 |
Method of producing a spherical gyro rotor
|
|
|
2963772 |
Method of making balls
|