Louis A Poulos

US Patent:

52793141, Jan 18, 1994

Filed:

Dec 23, 1991

Appl. No.:

7/812725

Inventors:

Louis Poulos - Mountain View CA
Leonard L. Hofheins - Concord CA
Del M. Thornock - Concord CA

Assignee:

Advanced Dental Research Corporation - San Jose CA

International Classification:

A61C 1500

US Classification:

132322

Abstract:

A light electric dental flosser with a rechargeable battery compartment includes a motor casing, interchangeably individualized head units, and disposable plastic floss tips that snap mount within the hinged end of the head unit. The floss tips exhibit bidirectional flossing motion provided from a motion translation system including an eccentric cam, a yoke, and an output shaft with a cam follower mechanism that follows a generally Z-shaped tracking surface with a vertical track component and a horizontal track component enabled by the yoke to complete the resulting "Z" movement. The floss tips have a molded-in filament and are molded from a shock absorbing substance which absorbs the vertical component of the "Z" shaped motion upon the application of pressure to the filament thereby outputting horizontal motion until the filament passes through the contact area between two teeth. In an automatic mode, an infrared sensor in the head activates the motor when the line of sight between infrared sensors is broken by the filament approaching a contact area between two teeth.

US Patent:

D3434788, Jan 18, 1994

Filed:

Dec 23, 1991

Appl. No.:

7/813218

Inventors:

Louis Poulos - Mountain View CA
Leonard L. Hofheins - concord CA
Del M. Thornock - Concord CA

Assignee:

Advanced Dental Research Corporation - San Jose CA

US Classification:

D28 64

US Patent:

57996105, Sep 1, 1998

Filed:

Mar 4, 1996

Appl. No.:

8/610272

Inventors:

Louis Poulos - Mountain View CA

International Classification:

A01K 101

US Classification:

119166

Abstract:

A litter box assembly for pets includes two identical, stackable litter boxes each having a bottom with a pattern of openings and pointed, raised projections. A track extends around the bottom of each box to hold a plate with defines mating apertures and slides back and forth in the track to, respectively, align the openings and close off the openings. A handle on each box attaches to the plate and may be moved to the open position to allow unclumped litter to flow into the box stacked below. The clumped waste is held off the bottom of the box on the raised projections for disposal by dumping. The lower box containing the filtered litter is moved to the top position of the stack to be ready for use.