Abstract: A measurement device and method that allows for precise placement, as well as more accurate measurement of various body parts, including vessels, lesions, and/or lumens of vessels of various body parts. The measurement device comprises one or more measurement tapes having (i) a plurality of measurement marks for measuring a distance and/or a length of a vessel and (ii) a plurality of circular indicators for measuring a diameter of a lumen of the vessel.

Abstract: The present invention is directed to an apparatus and method for marking an angles relative to a baseline, the apparatus comprising two elongate arms, one arm having a length greater than that of the other, the arms being pivotally joined at one end by a connecting means having an aperture and anchoring means attached to the other ends for anchoring the arms to a first marker at one end of the baseline and a second marker marking the other end of the baseline to a specified length. The baseline length determines the size of the angles given the constant lengths of the first and second arms. The method may be employed by a single unskilled user to mark angles of any size greater than 0 and less than 180 degrees. The apparatus may be sized and proportioned for use on projects of widely varying scales.

Abstract: A combination carpenter square and bevel/sliding bevel having three triangle-shaped adjoining legs, with an articulating joint between the hypotenuse leg and each adjoining leg. The other two non-hypotenuse legs are capable of forming a substantially 90 degree angle between the two non-hypotenuse legs to function as a carpenter's square. At least one of the articulating joints at the hypotenuse leg is capable of tightening and loosening. The hypotenuse leg also consists of a slot positioned longitudinally of the hypotenuse leg. The tightening and loosening articulated joint joins the hypotenuse leg with an adjacent non-hypotenuse leg through the slot, which allows the adjacent non-hypotenuse leg movement about the joint relative to the hypotenuse leg to function as a bevel. The articulated joints allow the combination square and bevel/sliding bevel to be folded into a compact shape.

Abstract: A combination carpenter square and bevel/sliding bevel having three triangle-shaped adjoining legs, with an articulating joint between the hypotenuse leg and each adjoining leg. The other two non-hypotenuse legs are capable of being latched or detached by a latching joint that, when latched, forms a substantially 90 degree angle between the two non-hypotenuse legs to function as a carpenter's square. One of the articulating joints at the hypotenuse leg is capable of tightening and loosening. The hypotenuse leg also consists of a slot positioned longitudinally of the hypotenuse leg. The tightening and loosening articulated joint joins the hypotenuse leg with an adjacent leg through the slot, which allows the adjacent leg movement about the joint relative to the hypotenuse leg to function as a bevel. The articulated joints and the detaching function of the latching joint allows the combination square and bevel/sliding bevel to be folded into a compact shape.

Abstract: A collapsible square constructed according to the principles of the present invention includes a first elongated rigid leg having first and second ends and a second elongated rigid leg having first and second ends. The second elongated rigid leg is pivotally connected at its first end to the first end of the first elongated rigid leg. The collapsible square further includes a hypotenuse member comprising two elongated rigid leg portions. A first of the leg portions of the hypotenuse member and a second of the leg portions of the hypotenuse member have their first ends pivotally connected to the second end of the first elongated rigid leg and the second end of the second elongated rigid leg, respectively. The first of the leg portions and the second of the leg portions have second ends thereof connected to one another in a manner which permits the hypotenuse member to be folded.

Abstract: The layout instrument or tool of this invention includes a pair of members arranged together to form an "L" at a right angle. The unique feature of this arrangement is that the two opposing ends of the "L" are also affixed to another member changing the shape from an "L" to the shape of a 3-4-5 triangle. All members of the instrument are permanently attached, therefore, misalignment is avoided and accuracy is assured and maintained. The two members are configured to slide with respect to one another at the pivot point of the "L" and simply pivot at their opposite ends about their pivot points connecting the third member and creating an enclosed triangle. A spring loaded rivet mounted in one of "L" members slides in a skewed slot in the adjacent member to open the triangle from a closed position where the three sides or members of the triangle are substantially parallel to one another.

Abstract: A square is disclosed which is especially adapted for the marking of angular dimensions on, or the transfer of angular dimensions from, rafters or other building materials and the like in that only one adjustment is needed to vary the angle being marked or measured. The disclosed square has a first elongate arm, a second elongate arm, and an elongate base having a distal and a proximal end, and a first elongate slot extending longitudinally intermediate its distal and proximal ends. The first elongate arm has a proximal end and a distal end which is pivotally attached to the proximal end of the base. The second has a proximal end, a distal end which is pivotally attached to the proximal end of the first elongate arm, and a second elongate slot extending intermediate its distal and proximal ends for intersection with the first slot.

Abstract: An angle measuring instrument provides two straight arms connected at one end for relative pivotal movement. A telescoping assembly includes two elongated telescoping members each providing a free end. The free end of one telescoping member is pivotally connected to one arm and the free end of the other telescoping member is connected to the other arm. The telescoping members provide scales indicating the angular position between the two arms, the distance between the pivots of the free ends of the telescoping members on the arms, and a correction to be added to or subtracted from measurements along the length of the arms to establish distances from the corner which is being measured. The two arms can pivot through a full 360 degrees relative to each other, permitting the measurement of inside and outside corners of all sizes. A straight edge is removably mounted on one of the arms when measuring outside corners.

Abstract: A measuring device is in the form of a triangle with the three legs and associated angles of the triangle being selectively adjustable. Each leg of the triangle is formed by two elongated strips secured in spaced parallel relation. A slot is formed between the pair of strips and receives one strip of each of the two adjacent triangle leg portions. This allows the length of the legs and angles of the triangle to be rapidly adjusted through relative sliding movement of the three leg portions. Each of the three leg portions is provided with a protractor for measuring the respective angle and a linear measuring scale for determining the length of the leg. The main application of the device is to measure all the angles and the lengths of the sides of the triangle with only one setting. By placing each of the three legs on a corner of a triangle all three angle measurements and all three side lenghts may be simultaneously determined.

Abstract: The disclosure teaches a device for creating an infinite number of vector triangles such that a vehicle's speed may be set as one leg of a vector triangle and the apparent wind's speed and direction may be set as a second leg, solution of the third leg yielding true wind speed and relative wind direction which is convertible into true wind direction by reference to vehicle true heading.

Abstract: The layout instrument or tool of this invention includes a pair of members arranged together to form an “L” at a right angle. The unique feature of this arrangement is that the two opposing ends of the “L” are also affixed to another member changing the shape from an “L” to the shape of a 3-4-5 triangle. All members of the instrument are permanently attached, therefore, misalignment is avoided and accuracy is assured and maintained. The two members are configured to slide with respect to one another at the pivot point of the “L” and simply pivot at their opposite ends about their pivot points connecting the third member and creating an enclosed triangle. A spring loaded rivet mounted in one of the “L” members slides in a skewed slot in the adjacent member to open the triangle from a closed position where the three sides or members of the triangle are substantially parallel to one another.