A hitch for allowing a trailer to be first disconnected from a vehicle, to be then jacked so it is level with the support surface, and then be automatically jacked back to the level of the vehicle so that it can be easily reconnected to the vehicle. A switch is pivotally associated with the trailer for movement in a plane parallel to a vertical plane extending along the longitudinal axis of the trailer. A lock is provided for locking the switch in any one of an infinite number of positions with ...

One aspect is a method for inserting an instrument into the gastrointestinal tract of a mammal, by emplacing at least a portion of a flexible liner to form within the intestine an inner tube within an outer tube, the inner tube defining a lumen lying within the intestine and having a distal end accessible via the anal opening from outside the body of the mammal, and thereafter passing the instrument into the lumen via its distal end. Another aspect is the combination of an elongate evertible lin...

A prostatic stent comprises a body member and a retaining member. The body member includes a distal terminating end, a proximal end portion, and a lumen extending within the body member to allow fluid drainage through the body member. The body member is sized for placement substantially within the prostatic section of the urethra, with the distal terminating end located proximal of an external sphincter to allow normal operation of the external sphincter. The retaining member extends from the pr...

A microprocessor system in which a microprocessor with a linear sequencing circuit works with arithmetic logic, program memory, registers, and other support circuitry to provide control lines and bus connections to an external application dependent logic module which has control logic, external registers and external memory and is oriented to handle the specific requirements for data transfers to and from a particular type of peripheral device. Means are provided in said microprocessor for selec...

The harvest of fruit from bearing trees and plants is facilitated by application of effective concentrations of 4,5-dibromothiophene-2-carboxylic acid.

A male device for facilitating sexual intercourse of elastic material comprising a check valve allowing fluid flow only out of an interior space in the device. The device may also serve as a male contraceptive.

The harvest of fruit from bearing trees is facilitated by application of effective concentrations of N-(substituted phenyl)maleimides.

The invention relates to an instrument facilitating the plotting of a course on a chart, map and the like, said instrument comprising a graduated lens and a pointer movable relative to said lens. The novel matter of the invention resides in that the lens is formed as a convex lens and provided with a peripheral support ring defining underneath said lens a space for the pointer. The support ring is at least partly made from a material which prevents sliding movement of the instrument on the chart...

A sole attachment or undersupport in the form of a plate attached to the sole of footwear, in particular a ski boot, wherein the lower tread or walking surface is domed in the direction of the sole. The plate is provided with holder elements which engage over the sole. One of the holder elements is rigid, the other holder element is movable. Fixing means, for instance pins are provided, which engage into bores provided at the ski boot sole. The plate consists of telescopically adjustable plate p...

The harvest of fruit from bearing trees and plants is facilitated by application of effective concentrations of 3,5-dichloro-4-hydroxyphenylisothiocyanate.