David M Ayers

Address:

4936 Windmill Mnr Ave, Bradenton, FL 34203

VIN:

JTDBL40E499071682

Make:

TOYOTA

Model:

COROLLA

Year:

2009

US Patent:

44846398, Nov 27, 1984

Filed:

Jul 25, 1983

Appl. No.:

6/516812

Inventors:

David B. Ayers - Houston TX

Assignee:

Dresser Industries, Inc. - Dallas TX

International Classification:

E21B 4311

US Classification:

175 456

Abstract:

Method and apparatus for completing sursurface formations traversed by a borehole. A perforating gun and a firing head assembly are run into the borehole on the end of a tubing string. A percussion firing assembly subsequently is lowered through the tubing string and latches into the firing head assembly. To initiate the firing system an impact member is dropped through the tubing string. Should ignition fail to occur the percussion firing assembly can be detached and removed from the borehole. Additional percussion firing assemblies can be lowered into engagement with and removed from the firing head assembly as desired. Further, an electrical firing assembly can be lowered through the tubing string into engagement with the firing head assembly and an electrical control signal used to detonate the perforating gun. Should ignition again fail the electrical firing assembly is removed leaving a perforating system having no primary explosives therein, which can be removed from the borehole by pulling the tubing string.

US Patent:

47083450, Nov 24, 1987

Filed:

Jan 6, 1986

Appl. No.:

6/816450

Inventors:

David B. Ayers - Houston TX

International Classification:

A63F 908

US Classification:

273153S

Abstract:

An amusement device for use in providing a manipulative puzzle, word games, games of chance, scoring games, or the like. Upper and lower parallel plates are planarly rotatable about a vertical axis. A plurality of cylinder assemblies is carried by the plates disposed on the outer periphery such that their longitudinal axes intersect to define a regular polygon parallel to the plates. Means are provided for maintaining spatial position of the upper one-half of each cylinder assembly relative to the upper plate, and the lower one-half of each cylinder assembly relative to the lower plate as the plates are rotated in opposing directions. When the plates are rotated such that the upper and lower cylinder halves combine to define the cylinder assemblies, each such assembly is further rotatable about its longitudinal axis. Each cylinder is comprised of sections each preferably having an identifier on its outer surface such as a different color or the like. Repeated rotation of the plates and cylinder assemblies permits formation of such assemblies from any combination of cylinder sections.

US Patent:

51785765, Jan 12, 1993

Filed:

Feb 4, 1991

Appl. No.:

7/650163

Inventors:

David B. Ayers - Houston TX

International Classification:

A63H 3300

US Classification:

446486

Abstract:

A pair of platform devices used for interaction with a flexible coil spring toy have a plurality of flat step-like surfaces separated vertically and horizontally corresponding to the periodic step-walking motion of the flexible coil spring toy. The platform devices are manipulated in an alternating sequence in cooperation with the motion of the flexible coil spring toy to give the appearance that the toy is walking down a set of stairs. In the preferred embodiment, the platform devices have a handle and are held and manipulated by a human operator. The spring momentum transfers the coils of the spring from one surface of the device to the next lowermost surface of the device as the spring's adjacent coils successively sweep through the path of an arc. When a certain amount of coils have been moved to the lower surface, the momentum causes the trailing coils to move over the center of mass of the flexible coil spring and land onto another lower surface to give the appearance that the flexible coil spring toy is walking down a set of stairs. When the spring toy reaches the lowermost surface of one of the devices, the other device is placed in position to enable the spring toy to land on its uppermost surface.

US Patent:

45836027, Apr 22, 1986

Filed:

Jun 3, 1983

Appl. No.:

6/500756

Inventors:

David B. Ayers - Houston TX

Assignee:

Dresser Industries, Inc. - Dallas TX

International Classification:

E21B 4311

US Classification:

175 452

Abstract:

An improved small diameter, high density shaped charge perforating apparatus is provided. The perforating apparatus includes an elongated carrier member having a plurality of shaped charge receiving stations spirally located therealong. The anterior and dorsal sections of the shaped charges extend outside the outer diameter of the carrier member and a length of helically wound detonator cord passes through an axial aperture in the dorsal section to retain the shaped charges in the carrier member. An alignment member is connected to one end of the carrier member to prevent rotational movement of the carrier member within the gun body and aligns the axis of perforation for each shaped charge with spotfaces on recesses in the periphery of the gun body.

US Patent:

48817384, Nov 21, 1989

Filed:

Jan 11, 1989

Appl. No.:

7/295819

Inventors:

David B. Ayers - Houston TX

International Classification:

A63F 908

US Classification:

273153S

Abstract:

A manipulative amusement device that includes upper and lower plates parallel to and in coaxial alignment with and rotatable relative to each other, each plate having a pair of spaced collar pieces disposed on opposite sides of a plurality of openings disposed in the periphery thereof to define a plurality of coaxially disposed spaced pairs of collar members, and a plurality of cylinder assemblies each formed about a respective longitudinal axis and comprised of an even number of cylinder segments with each cylinder assembly having opposing ends adapted for being rotatably received by the pair of spaced coaxially aligned collar members for permitting rotation of the cylinder assemblies. Improvements include a knob portion having a generally cylindrical inner recess projecting axially from one plate with the other plate having an axial post projecting therefrom and adapted for insertion through a central aperture in the one plate and into the knob recess, and a spring loaded retainer assembly cooperating with the post and the interior recess of the knob member for biasing both plates into planar surface contact and permitting limited axial separation of the plates in response to outward forces exerted therebetween by lugs disposed in the periphery of the collar members rotating out of registry with longitudinal recesses disposed in the ends of the cylinder assemblies.

US Patent:

D3157512, Mar 26, 1991

Filed:

Jan 11, 1989

Appl. No.:

7/295901

Inventors:

David B. Ayers - Houston TX

US Classification:

D21104