A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
A process for preparing non-planar thermoplastic fiber reinforced composites utilizes drapeable thermoplastic impregnated fiber reinforced prepregs in a pressure thermoforming process employing but one diaphragm. The single diaphragm when initially used is flat, but becomes deformed, following its first use, to the shape of the finished part. The diaphragm thus deformed may be repeatedly used as it will still fit over the prepreg layup.
This invention relates to a headset hanger that may be mounted near stereo equipment, in homes, studios, etc., to keep headphones from being damaged or misplaced. A unitary molded hanger is shown having means for retaining the headband in fixed position, and having means for attaching to a wall or other structure for mounting with respect thereto.
An antenna system includes a ground plane, an aperture array of patch radiating elements and a feed structure. The feed structure has a first and second beam forming networks that each couple to selected radiating elements to form first and second antenna arrays. At least one and less than all of the radiating elements are shared by the first and second antenna arrays.
An omnidirectional dual band antenna system includes a radome and an antenna in the radome. The antenna has a linear array of lower frequency band driven elements, a linear array of higher frequency band driven elements and a linear array of parasitic elements, spaced in parallel planes with the array of higher frequency band driven elements in the middle. The parasitic elements couple to the higher frequency band driven elements and reshape the radiation pattern of the higher frequency band dri...
The chip cracking device is for engaging the lateral surfaces of a mounted computer chip. The device body has a pair of curved leg members having upper and lower portions with inwardly extending centrally disposed structures. A pivot member is operative on the inwardly disposed structures and an adjustable and hand operable knob is operative on the upper portions of the leg members. The chip cracking device further has opposing jaw members with lateral cutting edges of a predetermined slope so t...
Yeast promoters of glycolytic enzymes are modified by isolating a fragment encompassing the RNA polymerase binding site and joining to the 5' end of this fragment a DNA sequence providing for enhanced inducible or constitutive transcription of a structural gene. Constructs are prepared for efficient expression of foreign genes in yeast. Yeast strains 2150-2-3 (pC1/1GAPSOD) and AB110 (pC1/1GAPATi9), producing human .alpha..sub.1 -antitrypsin and superoxide dismutase, were desposited at the A.T.C....
A microstrip patch antenna structure is disclosed having increased bandwidth and reduced coupling while maintaining low profile capabilities. The structure includes a support member having an isolating recess in which an electromagnetically coupled patch pair of antenna elements is positioned, the upper element being substantially flush with the surface of the support member surrounding the recess. To enhance isolation of the elements, the recess walls and the support surface are preferably elec...
Yeast promoters of glycolytic enzymes are modified by isolating a fragment encompassing the RNA polymerase binding site and joining to the 5' end of this fragment a DNA sequence providing for enhanced inducible or constitutive transcription of a structural gene. Constructs are prepared for efficient expression of foreign genes in yeast. Yeast strains 2150-2-3(pC1/1GAPSOD) and AB110(pC1/1GAPATi9), producing human .alpha..sub.1 -antitrypsin and superoxide dismutase, were deposited at the A.T.C.C. ...
Controlling an unmanned aerial vehicle (UAV) may be accomplished by using a wireless device (e.g., cell phone) to send a control message to a receiver at the UAV via a wireless telecommunication network (e.g., an existing cellular network configured primarily for mobile telephone communication). In addition, the wireless device may be used to receive communications from a transmitter at the UAV, wherein the wireless device receives the communications from the transmitter via the wireless network...
