Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 4211213 | Solar panel A solar panel having at least two corrugated heat retention surfaces, each including a pair of opposite sides and opposing ends. One of the retention surfaces has a surface defining a plurality of dimples. The retention surfaces are mated with each other ... | 07/08/1980 |
| 4211214 | End plug fitting for an endoscope An end plug or fitting for an endoscope includes a mouthpiece member 1 having a central passage therethrough for the insertion of a medical instrument, such as a forceps, into a guide tube 5. The upper portion of the passage receives a sealing member 2 ha... | 07/08/1980 |
| 4211215 | Endoscope housing cover hinge construction utilizing a spring, ball and bore arrangement in combination with a hinge pin The invention discloses an endoscope, and particularly a rectoscope, having an improved means of securing a cover to the head housing of the endoscope using a releasable hinge. In a preferred embodiment a pin removably located in a bore forms the hinge fo... | 07/08/1980 |
| 4211216 | Whirlpool bath A whirlpool bath designed for use in hospitals and similar institutions has a tub which is raised sufficiently above the floor level on a recessed steel base so as to allow a vertical clearance for the use of trolleys and mobile patient-handling equipment... | 07/08/1980 |
| 4211217 | Brush for brushing the hair or massaging the cutaneous covering A hair and massage brush in which each bristle is a bent loop projecting from a perforated support. The ends of the loops extend through perforations in the support and are fixed by fusing the ends into a ball of a size greater than a perforation of the s... | 07/08/1980 |
| 4211218 | Spinal restraint device A spinal restraint device in the form of a body member having a head support portion, a neck support portion, and a back support portion. The back support portion and the neck support portion have a body wrap-around arm portion extending laterally from ea... | 07/08/1980 |
| 4211219 | Preventive medical body brace for a person lifting or carrying weights This invention is a device that, in effect, extends the pelvic bones to support the load-bearing of a person or to carry other loads applied to the suprapelvic structure and therefore to reduce forces resultant on the lumbosacral area by transmitting part... | 07/08/1980 |
| 4211220 | Diving helmet assembly In an improved diving helmet, or diving helmet assembly, of the type having a seal characterized as a flexible diaphragm, usually an annular diaphragm which seals about the diver's neck to close off the helmet and provide an interface between the water an... | 07/08/1980 |
| 4211221 | Respirator A synchronized intermittent mandatory ventilation respirator for providing inhalation and exhalation cycles to a patient while permitting the patient to carry out a complete inhalation and exhalation cycle spontaneously, comprising a gas supply adapted to... | 07/08/1980 |
| 4211222 | Iontophoretic burn-protection method A method, and typically a pair of treatment electrodes energized at opposite electrical polarity, is provided for applying electricity to the human body. At least the area of the negative electrode in contact with the skin is covered with felt-like materi... | 07/08/1980 |
| 4211223 | Pulsed oxygen chamber A treatment chamber for a portion of a human body specially adapted for use with a pulsed or hyperbaric oxygen supply, the chamber comprising upper and lower sections adapted to be sealingly clamped together and provided at both ends with demountable annu... | 07/08/1980 |
| 4211224 | Filter venting devices for ostomy appliances Waste gases, flatus, are released to the atmosphere through venting devices, attached to post-surgical ostomy appliances, after offensive odors are removed by deodorants impregnated on fibrous or porous granular filters. In the preferred embodiment the ve... | 07/08/1980 |
| 4211225 | Tampon with a collapsible and invertible shroud A tampon designed for catamenial or medical use which includes a collapsible and invertible shroud (13) affixed to the front or inserted end (17) of the main tampon body (12). The shroud has an inner layer (15), adjacent to the main tampon body, fabricate... | 07/08/1980 |
| 4211226 | Disposable diaper with flap covered tape fastener A disposable diaper comprising, an absorbent pad assembly having an absorbent pad, and a sheet covering a surface of the pad. The sheet has a slit defining a strip connected to the remaining portion of the sheet. The diaper has a pressure-sensitive tape s... | 07/08/1980 |
| 4211227 | Surgical sponge material A nonwoven hospital sponge material has been provided comprising a layered fabric having an inner core of a substantially hydrophilic material disposed adjacent at least one outer or surface layer or between a pair of outer layers of a substantially hydro... | 07/08/1980 |
| 4211228 | Multipurpose tibial template A multipurpose template comprising: a Y-shaped element comprising a flat handle integrally extended at one end by two flat, elongated prongs, which elongated prongs are symmetrically arranged with respect to a vertical plane passing through the axis of th... | 07/08/1980 |
| 4211229 | Laser endoscope An endoscope having a sheath containing both a telescope and a laser lens system with attachments for both ranging and distancing the laser focal point and for reducing the diameter of laser beam source.... | 07/08/1980 |
| 4211230 | Electrosurgical coagulation In an electrosurgical device, a RF generator is pulse modulated during coagulating procedures. Pulse repetition rate is varied allowing the occasional interjection of relatively wide pulses of RF energy while still allowing sufficient cooling time to avoi... | 07/08/1980 |
| 4211231 | Cryosurgical instrument A cryosurgical instrument which may be used with interchangeable spray and closed end cryotips includes a body member with a central bore extending partially therethrough. Refrigerant is supplied to a first point in the bore through a valved refrigerant s... | 07/08/1980 |
| 4211232 | Mucous membrane cutter for mucogingival membrane surgery A mucotome or mucous membrane cutter for mucogingival membrane surgery is disclosed. The mucotome comprises a handle having a small, compactly designed cutting head arranged on its forward end, the cutting head including a circular cylindrical blade-holdi... | 07/08/1980 |
| 4211233 | Urethral catheter An elongated tube is provided defining an internal longitudinal passage therein and having a tip at its forward end. The tube includes two lateral openings formed therein closely proximal the tip opening into the passage and an inflatable body is supporte... | 07/08/1980 |
| 4211234 | Endotracheal tube introducer An endotracheal tube introducer comprising a rigid hollow mouth piece of greater diameter than the endotracheal tube being inserted thereinto, and an elongated member secured to and extending longitudinally away from the mouth piece, the elongated member ... | 07/08/1980 |
| 4211235 | Programmer for implanted pacer A plurality of programming bits are placed into a parallel in-serially out register. When the programmer is activated, a monostable resets a counter, and energizes an oscillator which clocks the counter. Three subintervals from the counter are utilized fo... | 07/08/1980 |
| 4211236 | Orthopedic cushion and method for fitting thereof An orthopedic cushion, both fittable as well as fitted, for a portion of a user's body such as a user's foot, and a method for fitting thereof. The fittable orthopedic cushion comprises a flexible envelope containing a flowable, highly viscous material. T... | 07/08/1980 |
| 4211237 | Method and apparatus for identifying recurring signal patterns A periodically occurring signal pattern that is part of a signal mixture including interference components, in particular QRS complexes of fetal heart signals in an abdominally derived fetomaternal electrocardiogram, is detected by storing the amplitude-t... | 07/08/1980 |
| 4211238 | Apparatus and method for recording and playing back electrocardial signals A system for encoding, recording, playing back, decoding, validating, and displaying cardiac signals obtained from a patient during ambulatory monitoring. The system permits the recording on a single track in a magnetic tape of a channel of ECG signals in... | 07/08/1980 |
| 4211239 | Neonatal oxygen consumption monitor An oxygen consumption monitor system suitable for use in measuring oxygen uptake in neonates wherein the system includes a check valve system in combination with a high flow, positive-end-expiratory-pressure respirator for supplying a high volume, control... | 07/08/1980 |
| 4211240 | Inspiratory force adaptor An inspiratory force adapter designed to be connected between a tracheostomy tube and an inspiratory pressure gauge, comprising a hollow plastic body adapted to be grasped by the thumb and finger of the operator and having a finger port adapted to be clos... | 07/08/1980 |
| 4211241 | Heart valve sizing gauge A sizing gauge for determining the proper size of heart valve for implantation in a natural heart valve orifice. The sizing gauge includes a handle which can be gripped by a surgeon, a sizing ring having a smooth outer surface and a hollow interior, and c... | 07/08/1980 |
| 4211242 | Composition of matter comprising more than 50% trans, trans-Ɗ-damascone for augmenting or enhancing the aroma and taste of a smoking tobacco Described is a process for augmenting or enhancing the aroma and taste of a smoking tobacco comprising adding to said smoking tobacco an organoleptic property modifying quantity of a composition of matter comprising more than 50% trans,trans-Ɗ-damascone ... | 07/08/1980 |
| 4211243 | Process for producing expanded tobacco stems Expanded porous tobacco stems with a low apparent density and an excellent quality of smoking taste are obtained by heating under a pressurized atmosphere tobacco stems separated from tobacco leaves, as such or after moisturization, at a temperature of 15... | 07/08/1980 |
| 4211244 | Smoking device A smoking apparatus which may be directly and selectively mounted on conventional smoke generating containers so as to receive, cool and concentrate the smoke discharged therefrom and retain such smoke for periodic inhalation by a person using the apparat... | 07/08/1980 |
| 4211245 | Hair-waving device A hair-waving device is disclosed, which is composed of an axonic body (e.g. a cylinder or a cone) on the surface of which a helical groove is formed. The helical groove communicates with a straight short groove in an axial direction across which a hair-c... | 07/08/1980 |
| 4211246 | Manicure nail smoothing and buffing Manicure nail processing apparatus is constructed to carry two fingernail processing elements, and to be hand-held, so that one element is presented to fingernails with the manicurist's fingers in non-folded condition, and the other element is presented t... | 07/08/1980 |
| 4211247 | Devices for use in selectively altering hair color The invention relates to a number of different devices that are useful in selectively altering hair color by the application of hair color altering liquids to selected portions of the hair of men and women. These include applicators that are adapted for u... | 07/08/1980 |
| 4211248 | Dispensing machine, in particular for coins A dispensing machine, includes a vat 1. The vat the axis of which is vertical, encloses a slanting disk 2 which is internally tangential thereto along two distinct surfaces: a lower frustum of cone 5, and an upper cylindrical surface 6. The axis of the pl... | 07/08/1980 |
| 4211249 | Liquid level control system A liquid level control system is disclosed for use with a swimming pool or the like having a pool reservoir, a main drain or outlet, usually at the bottom of the reservoir, and an outlet located at a predetermined water maintenance level for the pool. The... | 07/08/1980 |
| 4211250 | Pressure relief valve There is disclosed a pressure relief valve having an inlet to the interior thereof which comprises a passageway including an annular sealing member of resilient sealing material which has a sealing lip about its inner diameter adjacent its outer end, and ... | 07/08/1980 |
| 4211251 | Automatic purging system A system for automatically purging heating mantles and other apparatus including an enclosed volume capable of low level pressurization. The system comprises a pressure sensor for sensing the fluid pressure within the enclosure, which may be the space bet... | 07/08/1980 |
| 4211252 | Hydraulic coupler A coupler for connecting a hydraulically actuated material handling implement to an overhead support comprising a first assembly for connection to an overhead support, a second assembly for connection to a hydraulically actuated material handling implemen... | 07/08/1980 |
