Jeffrey J Carlson

D3918181, Mar 10, 1998

May 2, 1996

D/055808

Jeffrey James Carlson - Minneapolis MN

0803

D 8 57

62236733, May 1, 2001

Jul 30, 1999

9/365111

Norman P. Mears - Mahtomedi MN
Patrick S. Golden - White Bear Township MN
Charles P. Brewer - Linn Creek MO
Kirk M. Johnsen - Linn Creek MO
Leo A. Riley - Seal Beach CA
Ronald D. Romens - Verona WI
Jeffrey J. Carlson - Minneapolis MN
Wendell L. King - Pillager MN

Rave Sports Inc. - St. Paul MN

B63B 3573
A63G 400
A63B 511

114264

A floatable park that includes a trampoline and a first inflatable object attached to the trampoline. The first inflatable object is constructed to support a human being thereon. The park is floatable on water.

45028230, Mar 5, 1985

Dec 21, 1981

6/332581

Steve Wronski - Shoreview MN
John E. Albright - St. Paul MN
Jeffrey J. Carlson - Las Cruces NM

Sperry Corporation - New York NY

B23C 900
H01J 516
B23B 4724

409134

A Drill Bit detector for use with numerically controlled drilling machine capable of sensing missing or broken Drill Bits in the range of 1 mil to 30 mils in diameter, or larger, is described. An infrared emitting diode is driven at a predetermined frequency with the pulsed light being directed through fiber optic cable directed at a portion of the Drill Bit to be detected. A change of light intensity occurring when a Drill Bit is missing is detected and the pulsed light detected converted to a pulsating electrical signal at the input frequency of the pulse light source. A frequency responsive circuit converts the pulsating electrical circuit to a digital signal indicative of the absence of the sensed Drill Bit. A timer determines whether or not the sensed digital signal occurs for a predetermined threshold time period, and causes it to be ignored as spurious if less than the predetermined time interval, or causes the drilling machine operation to be halted if occurring longer than the threshold time period. Multiple detection circuits are illustrated for use with most multiple drill spindles.

20210122890, Apr 29, 2021

Feb 6, 2017

16/074131

- St. Paul MN, US
Graham M. Clarke - Woodbury MN, US
Joseph T. Bartusiak - Osseo MN, US
Ning Zhou - Vadnais Heights MN, US
Jeffrey A. Carlson - White Bear Lake MN, US

C08J 5/22
C09J 7/25
C09J 5/06
C09J 107/00
C09J 133/08
C09J 7/38

Presently described are polylactic acid polymer based films comprising a structured surface and articles. In one embodiment, the film comprises a semicrystalline polylactic acid polymer; a second polymer such as polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25 C.; and plasticizer. Articles are also described such as a tape or sheet, comprising the structured PLA-based film and a layer of (e.g. pressure sensitive) adhesive disposed on the film. In some embodiments, the tape or sheet further comprises a low adhesion backsize or a release liner. The article can be suitable for various end-uses. In one embodiment, the tape is a paint masking tape. In another embodiment, the tape is a floor marking tape.

20190218423, Jul 18, 2019

Dec 5, 2016

15/768957

- St. Paul MN, US
Ning Zhou - Vadnais Heights MN, US
Derek J. Dehn - Maplewood MN, US
Jeffrey O. Emslander - Grant MN, US
Corinne E. Lipscomb - St. Paul MN, US
Jayshree Seth - Woodbury MN, US
Jeffrey A. Carlson - White Bear Lake MN, US

C09J 7/25
C09J 7/24
C09J 11/08
C09J 11/06
C09J 7/38
C09J 7/35
C09J 7/50
C09J 7/40

An article is described such as a tape or sheet, comprising a PLA-based film and a layer of (e.g. pressure sensitive) adhesive disposed on the film. The PLA-based film comprises a semicrystalline polylactic acid polymer; a second polymer such as polyvinyl acetate polymer having a glass transition temperature (Tg) of at least 25 C.; and plasticizer. The tape or sheet may further comprises a low adhesion backsize or a release liner. The article can be suitable for various end-uses. In one embodiment, the tape is a paint masking tape. In another embodiment, the tape is a floor marking tape.