Abstract: An articulating marsh buggy or vehicle in the form of an articulated amphibious vehicle incorporating a front and rear drive unit which are pivotally connected for relative angular movement about a generally vertical axis and oscillatable about a generally longitudinal axis. Each of the units includes a pair of pivotal floatable pontoons with each pontoon including a drive chain on which elongated cleats are transversely mounted. The drive chains are driven by independent hydraulic motors to enable the vehicle to move over various terrains and be propelled in marshy areas, bayous or water bodies by cleats on the driven chains on the pontoons.

Abstract: A device and method for forming a downwardly extending hole in the surface of the earth for seismic exploration or for forming a larger diameter hole such as made during exploratory drilling. The hole forming device includes an elongated rigid planting member having a point or tip at its lower end which is forced downwardly into the earth's surface by a combination of forces. The multiple forces may include a primary downward force exerting a substantially constant downward push on the planting member and either or both additional forces imparted to the planting member when the primary force no longer moves the planting member downwardly.

Abstract: A vibrating hole forming device for seismic exploration in which a vertically elongated mounting pipe with attached rack gear is powered vertically by a hydraulically driven pinion gear which will mechanically push the pipe downwardly into the earth's surface. A vibrating mechanism imparts vibration to the downward force exerted by the pinion gear and rack gear. Vibration is imparted to the pipe automatically when hydraulic pressure required to operate the pinion gear reaches a predetermined pressure such as when the point on the lower end of the pipe encounters a predetermined resistance to further downward movement. This enables a lightweight unit to impart a constant downward force and a vibration force when needed to enable the device to penetrate through sands or extremely dense subsurface terrain thereby eliminating the necessity of providing a heavy weight vehicle such as is required when conventional hole forming devices are used on which the device is mounted.

Abstract: A weed cutting and shredding attachment for an electric trolling motor including a sharpened cutting blade oriented with the sharp edge thereof adjacent to the path of movement of the leading edge of the propeller blades on an electric trolling motor together with a mounting structure for effectively mounting the cutting element from the trolling motor.

Abstract: A vertically extendible and retractable mast for supporting an antenna and coaxial cable connected thereto to receive and/or broadcast information and is particularly adapted for use by seismograph exploration crews for receiving data from portable transmitter units which may be located at substantial distances from the receiver with the mast being adapted for mounting stationarily or on a mobile vehicle. The mast and antenna is a multiple stage antenna with simultaneous movement of the sections of the mast with the coaxial cable being fed at the same rate that the upper end of the antenna mast moves with the specific arrangement of the extension or lifting cables, retracting cables, winch and coaxial cable producing a novel and unique extendible and retractable antenna mast.

Abstract: A barbecue grill combined with a fire retarding screen suspended in vertically spaced relation to a bed of coals and below the cooking grill for barbecuing and smoking meats and vegetables placed on the grill. The fire retarding screen includes metal wire woven to form a mesh with small openings to retard flame passage and provide greater heat intensity for cooking the food at a faster rate with the high heat intensity of the screen causing any grease or fat drippings from the food to be dissipated on contact with the screen thereby eliminating accumulation or build up of flammable grease or fat drippings so that flames caused by such drippings becoming ignited will not burn or char food. This enables the outer edges and surfaces of the food to become crisp while the inner portion remains moist.