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.
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| Number | Title | Issue Date |
| 4977677 | Targeting device A targeting device comprising a transparent casing having a circumferential wall formed with circumferentially aligned openings. A transparent lens is enclosed by and in firm contact with the circumferential wall of the casing, has it circumferential surf... | 12/18/1990 |
| 4573863 | Fluid driven tube positioner Apparatus for positioning or orienting a hand of tubes, or the like, includes clamp arms for clamping the hand while on a conveyor, a fluid activated ram for raising the hand, inverting it 180°, lowering it back onto the conveyor, and releasing the clamp... | 03/04/1986 |
| 4553887 | Dunnage bag An inflatable dunnage bag is formed by a flat, flexible triangular envelope constructed of heavy kraft paper and a sealed inner plastic liner which is inflatable through a valve. The bag is used for shoring load by standing it upright with its base topmos... | 11/19/1985 |
| 4532158 | Apparatus for and a method of metering of coating on a moving web A method and apparatus are provided for metering of coating on a moving web of material, such as linerboard, paperboard, paper, film, foil or the like, in which the web is fed between a support and a skirt of flexible plastic sheet material extending acro... | 07/30/1985 |
| 4521911 | Bulk container A bulk container of substantially uniform cross-sectional area throughout its height is formed by so folding a single rectangular piece of woven fabric as to provide a bottom wall, four side walls extending from the bottom wall, and four rectangular corne... | 06/04/1985 |
| 4521910 | Multiwall cooler bag A multiwall cooler bag is formed by gusseted inner and outer tubes, the outer tube being made of kraft paper and having its lower end circumferentially bonded to the inner tube, the inner tube comprising an inner ply of plastic material heat sealed to clo... | 06/04/1985 |
| 4515266 | Modified atmosphere package and process A package for preserving produce in a wholesome condition for an extended period of time is formed by a sealed container enveloping the produce and filled with a preservative gas which inhibits bacterial growth. The container is formed by a high barrier f... | 05/07/1985 |
| 4484069 | Apparatus and method for sensing distance Apparatus for sensing the distance from a reference point to a remote object comprises a light source and optics to project light from the light source onto the remote object. One component of the optics is a movable mirror which is used to position the p... | 11/20/1984 |
| 4470153 | Multiwall pouch bag with vent strip A multiwall bag having an interior plastic pouch formed from a sealed plastic tube having a longitudinal seam comprising overlapping tube margins sealed together by two spaced seals to provide a channel, one of the tube margins being formed with openings ... | 09/04/1984 |
| 4454991 | Apparatus and method for monitoring and controlling a disc refiner gap An apparatus and method for dynamically monitoring the gap between the refining surfaces of first and second relatively rotating metallic refining members. At least one of the refining members is mounted to a first rotatable shaft which is supported in a ... | 06/19/1984 |
| 4449649 | Bulk material container A bulk material container having a pair of slings connected to the sidewall thereof for supporting and transporting the container is provided with an opening in its bottom wall for dispensing bulk material therethrough. The opening is opened and closed by... | 05/22/1984 |
| 4416922 | Apparatus and method for metering a coating applied to a moving web A method and apparatus are provided for metering and smoothing coating on a moving web of material, such as linerboard, paperboard, paper, film, foil or the like, in which the web is fed between a skimming rod below the coated side of the web and a skirt ... | 11/22/1983 |
| 4382538 | Valved lined container A valved lined container is disclosed. The container has an opening at one corner through which the liner valve protrudes. The liner valve is supported by an end flap of the container. The other corners of the container are reinforced. The liner may be fi... | 05/10/1983 |
| 4344558 | Pinch bottom valve bag A multi-ply, gusseted, stepped end, pinch bottom bag is disclosed which includes a sleeved valve in a corner of one end for receiving a filling spout from a product dispensing machine. The valve is completely sift-proof and is constructed without making c... | 08/17/1982 |
| 4344727 | Method and apparatus for stacking and collating articles A conveyor accumulates collapsed, flexible flat tubes into roughly aligned stacks which are transferred to a collator comprising an inclined tray-like receptacle mounted for multidirectional movement. The receptacle is simultaneously rotated and pivoted f... | 08/17/1982 |
| 4324820 | Method and apparatus for coating a paper web A moving substrate material such as a web of paper, paperboard, film, or other substance is covered with a coating by propelling a coating material onto a deflector bar positioned near the substrate material. The deflector bar is configured to deflect the... | 04/13/1982 |
| 4308099 | Nuclear reactor safety system A safety system (10) for shutting down a nuclear reactor under overload conditions is provided using a series of parallel-connected computing modules (14a, 14b, 14c, 14d, 14e) each of which receives data on a particular reactor parameter (P, T, $c; | 12/29/1981 |
| 4298574 | Hydrogen gas detector A differential thermocouple hydrogen gas detector (10) is provided by coating one thermocouple junction (34) of a differential thermocouple pair (34, 36) with a Palladium-Silver alloy catalyst (46) and the other thermocouple junction (36) with a non-catal... | 11/03/1981 |
| 4295255 | Expanded cooling jacket assembly A method of manufacturing a cooling jacket (10) is provided whereby a relatively thin-walled outer jacket formed as a cylinder (14') is press-fit over an inner casing (12) and the outer jacket (14') is then electron-beam welded to the inner casing (12) to... | 10/20/1981 |
| 4295493 | Drag ball valve including variable pressure reducing means A drag ball valve (10) that can variable regulate the pressure drop to which the fluid passing therethrough is subjected while maintaining the fluid velocity nearly constant is disclosed. To accomplish this, a series of fixed disks (34) having apertures (... | 10/20/1981 |
| 4290872 | High temperature reference electrode A hydrogen reference electrode is disclosed which is applicable to measuring systems for determining the oxygen content in high temperature water in the range of 400° F. to the critical point of water of approximately 713° F. at which it co-exists in th... | 09/22/1981 |
| 4290851 | Nuclear reactor safety system A safety system (10) for shutting down a nuclear reactor under overload conditions is provided using a series of parallel-connected computer memory type look-up tables (14a, 14b, 14c, 14d, 14e) each of which receives data on a particular reactor parameter... | 09/22/1981 |
| 4289114 | Control system for a solar steam generator A once-through solar steam generator assembly (16) is controlled by a control system wherein the outlet temperature of superheated steam from two independent boiler flow paths (1-12; 1'-12') is independently controlled to a common set point by a combinati... | 09/15/1981 |
| 4272927 | Method of manufacturing a broaching tool A broaching tool is manufactured directly from a heat hardened blank of preformed metal by having a grinding wheel of CBN (cubic boron nitride) material cut a broach tooth from the hardened blank by cutting gullets in the blank. The blank is made movable ... | 06/16/1981 |
| 4271866 | Drag ball valve including variable pressure reducing means A drag ball valve (10) that can variable regulate the pressure drop to which the fluid passing therethrough is subjected while maintaining the fluid velocity nearly constant is disclosed. To accomplish this, a series of fixed disks (34) having apertures (... | 06/09/1981 |
| 4241303 | Linearization circuit A voltage linearization circuit for use with a resistance thermometer device or a thermocouple to produce a nearly linear output signal from a non-linear input signal. The circuit produces a voltage proportional to the square of the input voltage through ... | 12/23/1980 |
| 4231262 | System for measuring entrained solid flow A measuring system (10) for measuring the flow of solids (ws) in a fluid stream is disclosed which utilizes only two differential pressure measurements (Ɗp1 ; Ɗp2) indicating the pressure drop across different points of ... | 11/04/1980 |
| 4222815 | Isotropic etching of silicon strain gages A method of etching a silicon diffused resistance pressure transducer assembly (13) of a transducer (10) mounted on a glass base (14) providing a thin flexible area on the transducer in the region of the diffused resistors (15) and a thick rigid area in t... | 09/16/1980 |
| 4222900 | Method of activating a palladium-silver alloy A differential thermocouple hydrogen gas detector (10) is provided by coating one thermocouple junction (34) of a differential thermocouple pair (34, 36) with a Palladium-Silver alloy catalyst (46) and the other thermocouple junction (36) with a non-catal... | 09/16/1980 |
| 4221094 | Reflective insulation assembly A highly flexible reflective insulation inner assembly is provided which spaces a pair of flexible reflective insulation sheets while also sealing a volume of space therebetween. To accomplish this a corrugated strip of material is mounted on its edge bet... | 09/09/1980 |
| 4215844 | Valve actuator system A pneumatic-hydraulic proportional valve actuator system is provided having a relatively simple and adjustable means of achieving two stroking speeds by the hydraulic actuator, high speed in normal operation and low speed for small position adjustments an... | 08/05/1980 |
| 4188761 | Spacer-sealer strip for reflective insulation assemblies A highly flexible spacer-sealer for reflective insulation inner assemblies is provided which spaces a pair of flexible reflective insulation sheets or liners while also sealing a volume of space therebetween. To accomplish this a corrugated strip of mater... | 02/19/1980 |
| 4180360 | Broach pulling mechanism A broach pulling mechanism is provided utilizing puller jaws which engage with a significantly larger circumferential groove at the end of the broach to pull the broach through a workpiece without any vertical drop of the broach in the puller mechanism du... | 12/25/1979 |
| 4150286 | Material flow monitoring circuit An electrical circuit assembly is provided for monitoring the flow of particulate fuel material in a chute having window areas on opposite sides thereof. The circuit assembly emits a light at one window end of the chute which is received at the opposite w... | 04/17/1979 |
| 4134289 | Gas sampling system having a flow indicator A gas sampling system is provided having a combustibles detector and an oxygen detector supplied from a common sample line by their own individual aspirators. The aspirators are sized to allow the one aspirator to overpower the second aspirator whenever t... | 01/16/1979 |
| 4127146 | High energy loss device A more compact high energy loss device is provided having a series of uniquely formed multiturn labyrinth assemblies which reduce the pressure of a fluid flowing therethrough. The inlet of the labyrinth assemblies is formed according to a substantially ci... | 11/28/1978 |
| 4119215 | Automatic loading-unloading mechanism for a pot broaching machine A loading and unloading mechanism is mounted to a pot broach to allow both loading and unloading of the pot broach during a single cycle. The mechanism includes a carriage having offset loading and unloading arms mounted thereto which simultaneously move ... | 10/10/1978 |
| 4105048 | High energy loss device A more compact high energy loss device is provided having a series of uniquely formed multiturn labyrinth assemblies which reduce the pressure of a fluid flowing therethrough. The inlet of the labyrinth assemblies is formed according to a substantially ci... | 08/08/1978 |
| 4104899 | Pneumatic buffering system A pneumatically buffered drive system is provided which quickly moves a movable member, such as a press safety curtain or press bolster, a predetermined length in three sequential speed stages to prevent maximum acceleration from occurring at the end of t... | 08/08/1978 |
| 4103534 | High energy loss disk stack testing apparatus A testing apparatus is provided for comparative testing of disk passage resistance of various disks in a high energy loss disk stack to detect blocked, broken down or irregularities in the various disks or individual passages thereof. The testing apparatu... | 08/01/1978 |