David L Hall
Land Surveyors in Salt Lake City, UT

6432346, Aug 13, 2002

May 3, 2000

09/564103

David L. Hall - Salt Lake City UT

Iomega Corporation - UT

B29C 4302

264427, 264101, 264293, 264310, 264320

A method of producing magnetic recording disks includes positioning the disks between flat plates and increasing the temperature and pressure on the disks. Servo tracks are embossed on the disks by an embossing pattern on the flat plate. Servo tracks may be applied by a printing pattern on the flat plates. The flat plates are rotated during the process to relieve directional differences in the modulus of elasticity of the disk.

6549506, Apr 15, 2003

Jul 17, 2000

09/618603

Paul R. Johnson - Kaysville UT
David L. Hall - Salt Lake City UT

Iomega Corporation - Roy UT

G11B 1730

369222

An optical head has a head gimbal assembly on which a light emitting laser is mounted. A tab extends from the assembly and a photo-detector is mounted on the tab. The tab extends from the load beam of the head gimbal assembly. Alternatively, the tab extends from a flexure of the head disk assembly.

2003002, Jan 30, 2003

Jul 26, 2001

09/915810

David Hall - Salt Lake City UT, US

Iomega Corporation

G11B017/02

360/099080

A labyrinth seal arrangement for preventing contaminants from entering an interior of the removable cartridge. The labyrinth seal includes a sealing disk disposed external to the cartridge housing proximate the hub opening that acts to pump air away from the hub opening to prevent a flow of air and airborne contaminants, including dust, dirt, smoke, and the like, from being introduced into the removable cartridge through the area around the hub opening during operation of the cartridge. The sealing disk can be part of the removable cartridge or the disk drive. The cartridge can include a clamping mechanism for selectively moving the sealing disk between a static contact position over the hub opening during a non-operating condition and a dynamic spaced apart relation with the cartridge housing during an operating condition. The sealing disk can have substantially the same dimensions as the data storage disk or can have pumping features either of which is designed to create an air flow that negates the air flow created by the spinning data storage disk(s). The sealing disk functions to produce substantially no net air flow into or out of the cartridge housing around the hub during operation. Zero net air flow results in no contaminant introduction. By controlling the introduction of contaminants into the interior of the cartridge, the life and performance of the disk cartridge can be improved by allowing an increased track density and linear density. The sealing disk also improves the capacity of the disk cartridge by providing a more reliable surface on the bottom surface of the disk proximate the hub opening, which is typically the least reliable recording surface of the data storage media.

6115219, Sep 5, 2000

Nov 13, 1998

9/191876

David L. Hall - Salt Lake City UT

Iomega Corporation - Roy UT

G11B 560, G11B 1732

3602342

An improved head assembly, that may be disposed on an actuator of a disk drive, includes a pair of sliders for interfacing with a data storage medium of a data storage cartridge. The improved head assembly of this invention includes a first and a second slider that each have a pair of longitudinal rails. These rails preferably extend parallel to the longitudinal axis of the respective slider. The first slider and the second slider each have a slot in one of their longitudinal rails. The sliders are oriented so that the slotted rail of each slider is aligned with an unslotted rail of the other slider. When a storage medium is rotated between the sliders a pressure is created between the storage medium and each of the sliders. Air pressure is bled from the area that is proximal to the slots to create areas of low pressure proximal to the slots. Because of this area of low pressure, the storage medium deflects proximal to the trailing edges of the slotted rail of each slider.

2004019, Oct 7, 2004

Dec 23, 2003

10/744599

Michael Dickson - Logan UT, US
Jeffrey Felt - Layton UT, US
Bart Ewer - Sunset UT, US
David Hall - Salt Lake City UT, US
David Young - Ogden UT, US
Mark Thornley - Layton UT, US
R. Palmer - Pleasant View UT, US

G11B005/60

360/236500

Disclosed herein are storage device sliders incorporatig thin-film sensors and wear resistant extensions. Also disclosed herein are data storage devices and assemblies utilizing those sliders. Detailed information on various example embodiments of the inventions are provided in the Detailed Description below, and the inventions are defined by the appended claims.

2012018, Jul 19, 2012

Jan 20, 2012

13/355334

David L. Hall - South Salt Lake UT, US

F41B 11/02

124 535

A paintball system may include a marker and delivery system configured to deliver paintballs to the marker. The delivery system may include a conduit and a gas supply. The gas supply may be configured to provide gas flow to the conduit, which may propel paintballs in the conduit to the marker. The gas supply may be configured to dynamically alter the gas flow to the conduit. The delivery system may include a first seal sized and configured to form a seal with at least one of the paintballs in the conduit.

2013032, Dec 12, 2013

May 23, 2013

13/901438

David L. Hall - South Salt Lake UT, US
Arthur J. Fillion - Ogden UT, US
Aaron G. Evans - Queen Creek AZ, US
Bradley G. Terry - St. Georga UT, US

H01H 37/54

337380, 277314

A sealed thermostat includes a body, electrical leads extending from the body for electrically connecting the thermostat to a system, a sheath sized to encapsulate the body and having a wall terminating at an open end, the sheath being disposed around the body with at least one of the electrical leads extending from the open end, and a sealant disposed in the open end around at least one electrical lead and between at least one electrical lead and the wall, thereby sealing the body within the sheath. The sealant and sheath substantially completely isolate the body from gasses capable of being ignited by an arc within the body.