Robert E Crawford

US Patent:

7104743, Sep 12, 2006

Filed:

Jun 22, 2004

Appl. No.:

10/872788

Inventors:

Donald D. Rainville - Woodbridge VA, US
Robert R. Crawford - Woodbridge VA, US
Leonard Paquette - Woodbridge VA, US
William Goldfarb - Manassas VA, US

Assignee:

Universal Dynamics, Inc. - Woodbridge VA

International Classification:

B65G 65/00

US Classification:

414288, 406171, 222504, 141302

Abstract:

A vacuum receiver for a pneumatic conveyor for conveying, e. g. , plastic pellets, having a receiving vessel with a material inlet, a material outlet and a conveying gas outlet. A first valve member is provided for opening and closing the conveying gas outlet, and a second valve member is provided for opening and closing the material outlet. Both valve members are connected to a common valve shaft and actuated by a single actuator mounted on a vessel lid. The vacuum receiver of the invention has the advantage of affording positive control and sealing of the material discharge valve while at the same time being economical to manufacture and easily cleaned.

US Patent:

57688974, Jun 23, 1998

Filed:

Feb 27, 1995

Appl. No.:

8/397034

Inventors:

Donald D. Rainville - Manassas VA
Robert R. Crawford - Stafford VA
Roderick W. Lyman - Stafford VA

Assignee:

Universal Dynamics Corporation - Woodbridge VA

International Classification:

F25D 1706

US Classification:

62 94

Abstract:

An apparatus for dehumidifying air includes a first air path having a first opening, a second opening, and a first desiccant mass intermediate the first and second opening, a second air path, having a first opening, a second opening, and a second desiccant mass intermediate the first and second opening, and an apparatus for causing air selectively from either the first air path or the second air path to flow to an outlet of the apparatus, wherein the ratio of the weight of each of the desiccant masses to the air flow rate into the apparatus outlet is about 1 pound of desiccant for each 10 to 20 cubic feet per minute of air flow. A controller adjusts regeneration heating times based on detected dew point before switching between air paths and detected temperature after switching air paths.

US Patent:

20200360661, Nov 19, 2020

Filed:

Jun 3, 2020

Appl. No.:

16/891636

Inventors:

- Baltimore MD, US
Robert CRAWFORD - Baltimore MD, US

International Classification:

A61M 25/01
A61M 5/42
A61M 25/06

Abstract:

Disclosed are devices and methods for automated emergency arterial cannulation. The device comprises a hand-held automated emergency arterial sheath placement device having a body with a handle and an actuator, and an arterial sheath placement head at the distal end of the handle body configured for placement against the patient's skin. The arterial sheath placement head includes an arterial sheath insertion device configured to advance an arterial needle, guide wire, and arterial sheath into a patient's artery upon sequential operation of the actuator. The arterial sheath placement head also includes a non-invasive artery locator configured to locate an artery into which the arterial sheath is intended to be placed. The arterial sheath placement head also preferably includes a Doppler gel and antiseptic needle, a local anesthetic needle, and a scalpel, all of which are likewise configured to advance from the upper body portion upon sequential operation of the actuator.

US Patent:

20180193598, Jul 12, 2018

Filed:

Jul 7, 2016

Appl. No.:

15/742060

Inventors:

Rajabrata SARKAR - Ellicott City MD, US
Robert CRAWFORD - Baltimore MD, US

International Classification:

A61M 25/01
A61M 25/06
A61M 25/09

Abstract:

Disclosed are devices and methods for automated emergency arterial cannulation. The device comprises a hand-held automated emergency arterial sheath placement device having a body with a handle and an actuator, and an arterial sheath placement head at the distal end of the handle body configured for placement against the patient's skin. The arterial sheath placement head includes an arterial sheath insertion device configured to advance an arterial needle, guide wire, and arterial sheath into a patient's artery upon sequential operation of the actuator. The arterial sheath placement head also includes a non-invasive artery locator configured to locate an artery into which the arterial sheath is intended to be placed. The arterial sheath placement head also preferably includes a Doppler gel and antiseptic needle, a local anesthetic needle, and a scalpel, all of which are likewise configured to advance from the upper body portion upon sequential operation of the actuator.

Address:

1322 Haubert St, Baltimore, MD 21230

Phone:

4437082892

VIN:

TRUMF38J581016253

Make:

AUDI

Model:

TT

Year:

2008

Address:

34 Ingate Ter, Halethorpe, MD 21227

Phone:

4104656425

VIN:

4T1BE46K17U584160

Make:

TOYOTA

Model:

CAMRY

Year:

2007