Minnesota Mining and Manufacturing Company

3m Innovative Properties Company

Lockheed Martin Corporation

Pool Knight, LLC

Other

David C May

Daniel J Willie

Mark D Zender

Mark D Purgett

Sithya S Khieu

Thomas P Hedblom

Kathleen A Hachey

Thomas R Borden

Gregory F Jacobs

Terry R Bailey

James E Lasch

James M Kaczmarczik

Phillip E Matar

Burton Wolfe

Ramy R Gali

Tom R Borden

David Jon Lundin

Cristina U Thomas

Ronald W Gerdes

James P Mathers

Kyung H Moh

Kathleen M Humpal

Zayn Bilkadi

Roger W Lange

Larry K Stump

John L Marty

Thomas V Kusilek

Louis C Belisle

Chris J Goodbrake

Thomas E Forester

Thomas D Krech

Warren J Johnson

Daniel A Sweeney

Maria P Costello

A swimming pool monitoring system including an imaging sensor for detecting the presence of an object within a defined perimeter of the swimming pool and a computer system operatively coupled to the imaging sensor with a non-transitory computer readable medium storing a program causing the computer system to execute processing to determine when an object is moving within a field of view of the imaging sensor once detected by the imaging sensor, to determine an angle of the object relative to the imaging sensor and to determine a range of the object relative to the imaging device to include a determination of a size of object for providing an alarm when the object approaches within a predetermined distance of the pool edge.

Smart surveillance system for swimming pools

A swimming pool monitoring system using a plurality of sensor systems to detect the presence of objects within a defined perimeter of the swimming pool prior to the objects reaching the edge of the pool. The objects may be people or animals. The sensor systems may include a ranging sensor, an audio sensor, an olfactory sensor and a video imaging sensor. The sensors are monitored by a computer system that has stored data for objects authorized to be within the pool perimeter. The system provides an alert or alarm upon detection of an unauthorized or unknown object in the monitored perimeter by comparing detected objects to the stored data. The system can determine the distance of the object from the pool edge and provide an adjustable alarm as the objects nears the pool edge. The system uses facial identification and voice identification to detect authorized objects and distinguish between unauthorized and unknown objects in order to establish a level of alert or alarm that can be communicated via loudspeaker, text message or email. The system can accept updated data from any sensor for adding additional authorized or unauthorized object identification data to a system database.

A signage overlay article includes a polymeric substrate having a thickness in a range from 75 to 1000 micrometers, an optically active sign sheeting fixed to the polymeric substrate, and a pressure sensitive adhesive layer adhered to the polymeric substrate. The pressure sensitive adhesive layer has a thickness in a range from 350 to 3000 micrometers.

Signage overlay article

Painting accessory support tool

Power isolation during time intervals of sensitive operations is disclosed. In one embodiment, a programmable chip package includes a programmable chip configured to perform a sensitive operation, and a switch configured to selectively couple a main power source to the programmable chip. The programmable chip package may also include an alternate power source and a controller that is configured to control the switch to decouple the main power source from the programmable chip during a time interval of the sensitive operation, wherein the programmable chip is configured to draw power from the alternate power source during the time interval. The controller is further configured to control the switch to couple the main power source to the programmable chip after the time interval.

Power isolation during sensitive operations

Power isolation during sensitive operations is disclosed. In one embodiment, a programmable chip package includes a programmable chip configured to perform a sensitive operation, and a switch configured to selectively couple a main power source to the programmable chip. The programmable chip package may also include an alternate power source and a controller that is configured to control the switch to decouple the main power source from the programmable chip prior to the sensitive operation, wherein the programmable chip is configured to draw power from the alternate power source during the sensitive operation. The controller is further configured to control the switch to couple the main power source to the programmable chip after the sensitive operation.

A pavement marking composition, methods of applying, and pavement markings produced therefrom. The composition is a two-part coating composition having an amine component including one or more aspartic ester amines and optionally one or more amine-functional coreactants, an isocyanate component including one or more polyisocyanates, and material selected from the group of fillers, extenders, pigments, and combinations thereof.

Liquid pavement marking compositions

When mounted to a vehicle, a dispenser ejects optical elements so that they have a component of movement that is parallel with the surface of the pavement to which the optical elements are to be applied. Preferably, the component of movement in that direction is more significant than a component of movement directly toward the pavement surface. A fluid assist causes the optical elements to be ejected from the dispenser nozzle at a velocity to at least partially counteract, and preferably match, the forward velocity of movement of the vehicle to which the dispenser is attached. Thus, in accordance with one specific aspect of the present invention, optical elements can be laid down upon marking material that has been applied to a pavement surface at a substantially reduced relative velocity to the road surface. By more closely matching the optical element velocity in a direction opposite the vehicle movement to the velocity of the vehicle, the optical elements can be laid down without substantial roll along the pavement marking material. This can be accomplished regardless of the size or mass of the optical elements. The result is that the retroreflectivity of the pavement marking is thus not compromised or negatively affected in either direction (i.e. in the direction of vehicle travel or in the opposite direction).

Particle dispenser with fluid assist to control particle velocity for use on a moving vehicle

A pavement marker has an unpotted upper shell and a lower base plate that together define a housing. A number of ribs are disposed in the housing interior oriented substantially perpendicular to the inner wall of the base plate. The upper shell has inclined end faces, an upper face, and is made of a plastic material having moderate to high flexural modulus and a high impact strength. The lower base plate has a planar inner wall and an opposed planar, pavement-engaging outer wall, and is made of a material having a Young's modulus of at least approximately 300,000 PSI (20.7.times.10.sup.8 Pascal). The ribs are formed unitarily with the inner wall of either the upper shell or the base plate, and extend upwardly from the inner wall of the base plate to the inner wall of the shell. A retroreflective lens is positioned on at least one of the first and second opposed side faces of the marker. The pavement marker resists delamination from a roadway surface when secured to the road with a soft adhesive.

Raised retroreflective pavement marker

A retroreflective element that exhibits exceptional wet retroreflectivity, and a method of manufacturing the same. The retroreflective element includes an assembly having a multi-sided retroreflector and a clear thermoplastic. In one embodiment, the clear thermoplastic is at least partially thermally deformed to create a convex retroreflective dome for capturing high incident angle light rays. The retroreflective elements may be used in a pavement marking system, such as attached to pavement marking tape or deposited in pavement marking paint.

Encased retroreflective elements and method for making

Durable retroreflective elements

Growing community of inventors

Hudson, WI, United States of America

David C May