Roger Dean Peters

US Patent:

20110315268, Dec 29, 2011

Filed:

Jun 25, 2010

Appl. No.:

12/803388

Inventors:

Roger Peters - South San Francisco CA, US

International Classification:

B65B 3/04

US Classification:

141 2, 141 21

Abstract:

An apparatus for preparing a syringe for use in injecting a medication includes a body extending obliquely upwardly, with a carriage slidably secured thereto and adapted to support a syringe. The syringe is fixedly secured to the body, and translation of the carriage proximally and distally knocks off the needle protective cap and the plunger cap. A trough aligned with the syringe enables an injectant vial to be translated downwardly to drive the needle into the vial. A plunger driver is slidably mounted on the body to engage the syringe plunger and assist its withdrawal and retraction. A protective cap holder may be placed on the trough to engage and remove the protective cap for later use.

US Patent:

48817457, Nov 21, 1989

Filed:

Apr 25, 1988

Appl. No.:

7/185504

Inventors:

Roger D. Peters - San Francisco CA

International Classification:

B23Q 314

US Classification:

279 4

Abstract:

A clamp for supporting a plate such as a memory disk which comprises a housing with a supporting surface in contact with one side of the plate surface and a mechanism for applying a segmented ring to the second side of the plate surface and a fluid pressure means within said housing to apply a large clamping pressure.

US Patent:

52000141, Apr 6, 1993

Filed:

Dec 9, 1991

Appl. No.:

7/803537

Inventors:

Roger Peters - Hayward CA

International Classification:

B29C 4514

US Classification:

156245

Abstract:

Apparatus for translating objects along a path is constructed in a manner which automatically conforms surfaces of a guideway with adjacent surfaces of a rail that extends along the guideway and thereby realizes very precise travel. A housing containing the guideway initially has a channel that is broader than the guideway. Plates are loosely disposed in the channel and strips of resilient material extend from the plates to the channel walls. The rail is emplaced between the plates and a cover plate is secured to the housing over the rail. This wedges the plates apart and compresses the resilient material while causing the top of the rail to be strictly parallel with the cover plate and while causing the plates to be strictly parallel with the rail side surfaces. Hardenable liquid adhesive is injected into the channel to unitize the plates with the housing.

US Patent:

56928408, Dec 2, 1997

Filed:

Dec 12, 1996

Appl. No.:

8/766171

Inventors:

Jeffrey K. Rhoton - San Ramon CA
Roger D. Peters - San Francisco CA

Assignee:

Phase Metrics - San Diego CA

International Classification:

F16C 2304

US Classification:

384110

Abstract:

A rugged spindle for a disk certifier that test the disks of a hard disk drive. The spindle contains a first bearing and a second bearing that are coupled together by a shaft. The first bearing is coupled to a chuck that captures a disk. The second bearing is coupled to the spindle shaft of an electric motor which rotates the disk. The bearings each contain an outer graphite sheath that is separated from a hardened housing by an air bearing. The connecting shaft is bonded to the first and second bearings by an adhesive that is injected through longitudinal passages of the shaft. The bonding adhesive flows along the interface of the connecting shaft and bearings until the adhesive fills an indicator slot of the shaft. Air bearings are created during the bonding process of the second bearing to insure an accurate relationship between the two bearings and the housing.

US Patent:

51182041, Jun 2, 1992

Filed:

Dec 14, 1990

Appl. No.:

7/627771

Inventors:

Roger Peters - Hayward CA

International Classification:

F16C 2902

US Classification:

384 42

Abstract:

Apparatus for translating objects along a path is constructed in a manner which automatically conforms surfaces of a guideway with adjacent surfaces of a rail that extends along the guideway and thereby realizes very precise travel. A housing containing the guideway initially has a channel that is broader than the guideway. Plates are loosely disposed in the channel and strips of resilient material extend from the plates to the channel walls. The rail is emplaced between the plates and a cover plate is secured to the housing over the rail. This wedges the plates apart and compresses the resilient material while causing the top of the rail to be strictly parallel with the cover plate and while causing the plates to be strictly parallel with the rail side surfaces. Hardenable liquid adhesive is injected into the channel to unitize the plates with the housing.

US Patent:

50253409, Jun 18, 1991

Filed:

Oct 16, 1989

Appl. No.:

7/421754

Inventors:

Roger Peters - Hayward CA

International Classification:

G11B 1708

US Classification:

360 99120

Abstract:

A chuck adapted for releasably securing data discs and the like for processing and testing procedures includes an arbor secured at its proximal end to a rotatable tool, and a cylindrical bore within the arbor houses a reciprocating piston. A spring within the bore biases the piston proximally, and a piston rod extends through an aperture in the distal end of the arbor. The distal end of the arbor includes a neck portion extending axially and distally and dimensioned to extend through the central aperture of a data disc, and an annular land surface extending about the neck portion to impinge upon the disc surface adjacent to the central aperture thereof. A resilient bushing is secured coaxially to the distal end of the piston rod, the bushing having a truncated conical configuration tapering toward the distal end. The proximal end of the bushing is dimensioned to be slightly smaller in diameter than the inner diameter of the annular land surface, and is provided with a bevelled outer edge. Air pressure is provided to the proximal side of the piston to drive the piston and piston rod distally, the bevelled edge of the bushing impinging on the end surface of the neck portion of the arbor when the piston is extended distally.

US Patent:

56445644, Jul 1, 1997

Filed:

Mar 17, 1995

Appl. No.:

8/406163

Inventors:

Roger Peters - Hayward CA

Assignee:

Phase Metrics - San Diego CA

International Classification:

G11B 17028
G11B 2504

US Classification:

369270

Abstract:

A pneumatically operated vacuum chuck for releasably securing data discs includes an arbor with an annular land disposed at the distal end thereof to engage the inner periphery of the disc. An annular groove is formed concentrically in the land to exert a suction grip on a data disc. A piston assembly is secured in a bore within the arbor, the distal end of the piston assembly including a resilient bushing that expands diametrically upon proximal retraction to block the egress path of the disc from the annular land. The piston head engages the bore with a sliding seal, and the sealed interior chamber of the arbor communicates with the annular groove at the distal end of the arbor. A compression spring biases the piston assembly proximally, and air pressure applied to the proximal end of the piston assembly drives the piston assembly distally against the spring. An air channel extends axially through the piston assembly from the proximal end thereof to the sealed interior chamber of the arbor, and a check valve disposed in the air channel transfers vacuum pressure to the annular groove and blocks pneumatic pressure. Pneumatic pressure translates the piston assembly distally, releasing the resilient bushing from blocking removal of the data disc on the annular land, and releasing the vacuum suction on the disc.

US Patent:

58454012, Dec 8, 1998

Filed:

Jun 17, 1997

Appl. No.:

8/877758

Inventors:

Jeffrey K. Rhoton - San Ramon CA
Roger D. Peters - San Francisco CA

Assignee:

Phase Metrics, Inc. - San Diego CA

International Classification:

B23P 1500

US Classification:

2989802

Abstract:

A rugged spindle for a disk certifier that test the disks of a hard disk drive. The spindle contains a first bearing and a second bearing that are coupled together by a shaft. The first bearing is coupled to a chuck that captures a disk. The second bearing is coupled to the spindle shaft of an electric motor which rotates the disk. The bearings each contain an outer graphite sheath that is separated from a hardened housing by an air bearing. The connecting shaft is bonded to the first and second bearings by an adhesive that is injected through longitudinal passages of the shaft. The bonding adhesive flows along the interface of the connecting shaft and bearings until the adhesive fills an indicator slot of the shaft. Air bearings are created during the bonding process of the second bearing to insure an accurate relationship between the two bearings and the housing.