| Patent | Date |
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Magnetic cores for saturable core measuring devices and methods of manufacturing such cores
Grant 5,239,290 - Schonstedt August 24, 1 | 1993-08-24 |
Method for providing magnetic markers on elongated hidden objects
Grant 5,173,139 - Rippingale , et al. December 22, 1 | 1992-12-22 |
Method of manufacturing magnetic detection apparatus
Grant 5,138,761 - Schonstedt August 18, 1 | 1992-08-18 |
Methods, apparatus and devices relating to magnetic markers for elongated hidden objects
Grant 5,114,517 - Rippingale , et al. May 19, 1 | 1992-05-19 |
Magnetic detection appartaus with plastic housing and sound-transmissive handle
Grant 5,097,211 - Schonstedt March 17, 1 | 1992-03-17 |
Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables
Grant 5,017,873 - Rippingale , et al. May 21, 1 | 1991-05-21 |
Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cables
Grant 5,006,806 - Rippingale , et al. April 9, 1 | 1991-04-09 |
Magnetic core blanks of magnetically permeable sheet material
Grant 4,839,623 - Schonstedt , et al. June 13, 1 | 1989-06-13 |
Magnetic cores
Grant 4,839,624 - Schonstedt June 13, 1 | 1989-06-13 |
Method of making magnetic cores
Grant 4,803,773 - Schonstedt February 14, 1 | 1989-02-14 |
Manufacture of magnetic cores from blanks of magnetically permeable sheet material
Grant 4,747,207 - Schonstedt , et al. May 31, 1 | 1988-05-31 |
Magnetic detector apparatus with excitation conductors connected in series via sensor housing
Grant 4,590,425 - Schonstedt May 20, 1 | 1986-05-20 |
Magnetic detector apparatus with liquid-supported, conductive, sensor-support tube
Grant 4,539,522 - Schonstedt September 3, 1 | 1985-09-03 |
Multiaxis magnetometer apparatus with orthogonally disposed rectangular housings for mounting separate sensor assemblies
Grant 4,388,592 - Schonstedt June 14, 1 | 1983-06-14 |
Apparatus and method employing foam sleeves for supporting magnetic sensors in a tubular housing
Grant 4,258,320 - Schonstedt March 24, 1 | 1981-03-24 |
Magnetic locator
Grant D255,552 - Schonstedt June 24, 1 | 1980-06-24 |
Housing for circuitry and loudspeaker of a magnetic locator shields and resiliently mounts the loudspeaker
Grant 4,163,877 - Schonstedt August 7, 1 | 1979-08-07 |
Magnetic detecting apparatus with novel means for positioning sensor assembly in a housing
Grant 4,110,689 - Schonstedt August 29, 1 | 1978-08-29 |
Method of manufacturing a magnetic locator
Grant 3,977,072 - Schonstedt August 31, 1 | 1976-08-31 |
Magnetic locator having improved sensors
Grant 3,961,245 - Schonstedt June 1, 1 | 1976-06-01 |
Magnetic locator having sensor units with two-piece housings and tubular cores
Grant 3,909,704 - Schonstedt September 30, 1 | 1975-09-30 |
Magnetic locator including sensors mounted in longitudinal grooves of a tubular support
Grant 3,894,283 - Schonstedt July 8, 1 | 1975-07-08 |
Compensation For Misalignment Of Magnetic Sensors
Grant 3,757,209 - Schonstedt September 4, 1 | 1973-09-04 |
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