Jackie L Smith

US Patent:

46317660, Dec 30, 1986

Filed:

Feb 25, 1985

Appl. No.:

6/705732

Inventors:

Caryl J. Semmler - Dallas TX
Carol A. Cook - Dallas TX
Jackie D. Smith - Lewisville TX

Assignee:

Board of Regents, The University of Texas System - Austin TX

International Classification:

A47D 1300

US Classification:

5431

Abstract:

An infant seat for holding low birth weight neonates which supports an infant in such a manner as to prevent most position-induced deformities from occurring. The seat includes a head-receiving cavity, a back-supporting region and a buttocks-receiving hollow; a leg-containing structure is disposed on each side of the hollow. The back-supporting region is configured to hold an infant in a supine position and includes an arcuate surface on each side for biasing a supported infant to remain in the supine position. The head-receiving cavity is designed to not only maintain the infant's head in alignment with the infant's back, but also engages the infant's head over a large semi-spherically area to prevent flattening of the skull. The leg-containing structure prevents the infant's legs from flailing outwardly away from the infant's body, thus reducing hip rotation deformities and abduction stress in the leg and hip joints of the infant.

US Patent:

62446312, Jun 12, 2001

Filed:

Mar 2, 1999

Appl. No.:

9/260250

Inventors:

Michael Payne - McKinney TX
Jackie E. Smith - Houston TX
Edmond I. Bailey - Houston TX

International Classification:

F16L 2500

US Classification:

285333

Abstract:

A drill pipe 10 comprises an elongate pipe section 12 having a substantially uniform pipe outer diameter 18 and a substantially uniform pipe inner diameter 20. A pin tool joint 14 is welded at one end to the pipe section, and a box tool joint 16 is welded to the other end of the pipe section. Each of the pin and box tool joints includes a thread for mating engagement and preferably first and second shoulders. The drill pipe has a ratio, R, which takes into consideration the pipe inner diameter, P. sub. ID, the pipe outer diameter, P. sub. OD, the tool joint inner diameter, TJ. sub. ID, and the tool joint outer diameter, TJ. sub. OD. This ratio may be expressed as: ##EQU1## According to the present invention, this ratio is greater than 8. 0, and is preferably from 8. 1 to 8. 5, thereby providing a drill pipe with desired strength and fluid flow capabilities.