Eugene Pennington Smith, III
Engineers at Zephyr St, Westminster, CO

5101679, Apr 7, 1992

Jan 8, 1990

7/461658

Eugene P. Smith - Westminster CO
Robert R. Boyd - Arvada CO

IVAC Corporation - San Diego CA

F16H 2920, F16H 2702, A61M 500

744248A

A half-nut block containing a threaded bore and a larger, overlapping, unthreaded bore is engaged with a lead screw. The larger bore overlaps the threaded bore so that effectively a half-nut results. The half-nut comprises a face having an acute angle in relation to the lead screw and this angled face contacts the inside of a bearing block within which the half-nut is mounted. The bearing block is slidably mounted on a C-tube which is mounted around and extends along a predetermined length of the lead screw. Also mounted on the C-tube is an arm for transmitting the linear motion of the bearing block to a remote point such as the plunger of a syringe. The arm is coupled to the bearing block at points selected so that transmission to the arm of any wobbling of the bearing block is reduced. The arm includes a lever which engages a cam formed on the half-nut to force the half nut to disengage from the lead screw when the arm is to be moved to a new location on the lead screw. A spring bias is coupled to the half-nut block opposite the cam for urging the half-nut block back into contact with the lead screw after disengagement.

5673687, Oct 7, 1997

May 24, 1996

8/653362

Darwin B. Dobson - Sun Prairie WI
Gregg D. Keefe - Boulder CO
Douglas R. Ogden - Arvada CO
Eugene P. Smith - Westminster CO

Respironics, Inc. - Murrysville PA

A61M 1616

12820414

A sealing and retaining arrangement for a humidifier with separable top and bottom members and an attaching arrangement for rigidly connecting a ventilator or other respiratory device to the top of the humidifier in a predetermined, fixed position. The sealing and retaining arrangement is designed for use between separable top and bottom members of a humidifier. The top and bottom are made of relatively rigid material and have overlapping or telescoping portions with a flexible, resilient seal extending therebetween. The seal also serves to positively retain the top and bottom together while in use. The attaching arrangement is designed to rigidly connect the ventilator or other respiratory device to the top of the humidifier in a predetermined, fixed position. This is accomplished by rigidly coupling the air outlet of the ventilator directly to the air inlet of the humidifier without any intervening, flexible hose.

5564415, Oct 15, 1996

Jun 7, 1995

8/472328

Darwin B. Dobson - Sun Prairie WI
Gregg D. Keefe - Boulder CO
Douglas R. Ogden - Arvada CO
Eugene P. Smith - Westminster CO

Lifecare International, Inc. - Westminster CO

A61M 1616

12820414

A sealing and retaining arrangement for a humidifier with separable top and bottom members and an attaching arrangement for rigidly connecting a ventilator or other respiratory device to the top of the humidifier in a predetermined, fixed position. The sealing and retaining arrangement is designed for use between separable top and bottom members of a humidifier. The top and bottom are made of relatively rigid material and have overlapping or telescoping portions with a flexible, resilient seal extending therebetween. The seal also serves to positively retain the top and bottom together while in use. The attaching arrangement is designed to rigidly connect the ventilator or other respiratory device to the top of the humidifier in a predetermined, fixed position. This is accomplished by rigidly coupling the air outlet of the ventilator directly to the air inlet of the humidifier without any intervening, flexible hose.

4960276, Oct 2, 1990

Jun 2, 1989

7/360293

Mark S. Feuer - Boulder CO
Eugene P. Smith - Westminster CO

Fittraxx, Inc. - Boulder CO

A63B 2300

272 97

An apparatus for closely simulating cross country skiing includes a platform on which right and left foot engaging supports are disposed for reciprocatory sliding movement with right and left hand engaging members being operatively connected to the foot engaging supports to reciprocate in a pattern simulating cross country skiing. A control system is employed for controlling the relative movement of the foot engaging supports and hand engaging members so that a slight amount of play exists between the foot engaging supports permitting a smooth gliding motion. Means are also provided in the control system for allowing the hand engaging members to move twice as fast as the foot engaging supports so that the relative movement between the hand engaging members and foot engaging supports more closely resembles actual cross country skiing.