Patents by Inventor Alan R. Davis
Alan R. Davis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5842380Abstract: A shift yoke (10) defining contact pads (18, 20) for axially engaging contact surfaces (22) on a relatively rotating clutch member (12). Inlet ramps (34, 36) are provided at the upstream ends of the contact pads to provide an inlet (36) for directing lubricant between the axially engaging surfaces.Type: GrantFiled: January 27, 1997Date of Patent: December 1, 1998Assignee: Eaton CorporationInventors: John C. Bierlein, Alan R. Davis, Marcel Amsallen, Mark L. Lanting, Douglas C. Gooch
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Patent number: 5713445Abstract: A ball ramp mechanism is used to load a clutch pack in a transmission inertia brake to slow a rotating shaft where an armature having an angled peripheral surface engages a mating surface formed in an inertia brake housing to form a cone clutch where the armature is magnetically pulled toward the brake housing by an electromagnetic field generated by an electrical coil thereby introducing a frictional braking force on the armature. The armature is nonrotatably connected to the control ring of the ball ramp mechanism through a plurality of tapered pins which engage a corresponding plurality of conical sections so that relative rotation between the armature and the control ring causes the armature to be forced toward the housing thereby increasing the braking force on the armature and control ring.Type: GrantFiled: July 22, 1996Date of Patent: February 3, 1998Assignee: Eaton CorporationInventors: Alan R. Davis, Thomas N. Riley
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Patent number: 5643579Abstract: Methods and vaccines for the production of antibodies to infectious organisms are described. Live recombinant adenovirus containing a foreign gene coding for an antigen produced by another infectious organism is delivered to the intestine of a warm-blooded animal in an enteric-coated dosage form, whereupon the virus infects the gut wall and induces the production of antibodies or cell mediated immunity to both adenovirus and the other infectious organism.Type: GrantFiled: July 29, 1994Date of Patent: July 1, 1997Assignee: American Home Products CorporationInventors: Paul P. Hung, Alan R. Davis
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Patent number: 5519037Abstract: Antiinfluenza A activity was found in compounds of the formula: ##STR1## wherein X is ##STR2## where one of R.sup.1 and R.sup.2 is H and the other is phenylamino and Z is --SCH.sub.3 or a pharmaceutically acceptable salt thereof.Type: GrantFiled: May 22, 1995Date of Patent: May 21, 1996Assignee: American Home Products CorporationInventors: Kuo-Hom L. Hsu, Daniel M. Teller, Alan R. Davis, Michael D. Lubeck, Harry R. Munson, Jr., Gunnar E. Jagdmann, Ibrahim M. Uwaydah
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Patent number: 5491892Abstract: A ground strap and vibration mount assembly (10) effectively mechanically isolates an electronic component from vibration while also providing an electrically conductive path to ground potential. The assembly (10) includes a vibration dampener (16) mounted through an opening (28) formed in a tab (12) projecting from the housing of the vibration sensitive electronic component. An insert (18) is provided therein and a mounting bolt (54) is positioned through a suitable opening (36) formed through the insert (18). An electrically conductive ground strap (40) is wrapped partially around the tab (12). An aperture (52) is formed in one portion (50) of the strap (40) and the bolt (54) passed therethrough. Opposing ends (42) of the electrically conductive connector (40) are secured to the tab (12).Type: GrantFiled: June 16, 1994Date of Patent: February 20, 1996Assignee: Eaton CorporationInventors: Todd W. Fritz, Mark L. Lanting, Alan R. Davis, Stephen A. Edelen, Jack D. Patterson
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Patent number: 5475012Abstract: Antiinfluenza A activity was found in compounds of the formula: ##STR1## wherein: X is 2-phenylethyl, 2-furanylmethyl, or ##STR2## where one of R.sup.1 and R.sup.2 is H and the other is phenylamino; Z is --SCH.sub.3 when X is ##STR3## or ##STR4## when X is 2-phenylethyl or 2-furanylmethyl; or a pharmaceutically acceptable salt thereof.Type: GrantFiled: October 13, 1994Date of Patent: December 12, 1995Assignee: American Home Products CorporationInventors: Kuo-Hom L. Hsu, Daniel M. Teller, Alan R. Davis, Michael D. Lubeck, Harry R. Munson, Jr., Gunnar E. Jagdmann, Ibrahim M. Uwaydah
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Patent number: 5425284Abstract: A control system/method for controlling the shifting of automated mechanical transmission systems (10) is provided. In a preferred embodiment, the control system/method (FIG. 4 ) defines the window ((OS*GR.sub.T)+K.gtoreq.IS.sub.E .gtoreq.(OS*GR.sub.T)) for synchronous engagement (for shifts other than compound upshifts) such that jaw clutch (112/114, 116/118) engagement will occur or tend to occur when the input shaft (16) is rotating at speed (IS) equal to or slightly greater than a true synchronous speed (OS*GR.sub.T) to provide a "push" sensation upon jaw clutch engagement.Type: GrantFiled: September 7, 1993Date of Patent: June 20, 1995Assignee: Eaton CorporationInventor: Alan R. Davis
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Patent number: 5413012Abstract: A control system/method for controlling the shifting of automated mechanical transmission systems (10) is provided. The control system/method (FIG. 4 ) defines the synchronous window ((OS*GR.sub.T)+X.gtoreq.IS.sub.E >(OS*GR.sub.T)-Y) for jaw clutch engagement (for shifts other than compound upshifts) where X and Y are each greater than zero and the total synchronous window (X+Y) equals the greater of a function (fGR.sub.T) of the numerical value of the target ratio (GR.sub.T) or a minimum value ((X+Y) min).Type: GrantFiled: September 7, 1993Date of Patent: May 9, 1995Assignee: Eaton CorporationInventor: Alan R. Davis
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Patent number: 5380734Abstract: Antiinfluenza A activity was found in compounds of the formula: ##STR1## wherein: X is 2-phenylethyl, 2-furanylmethyl, or ##STR2## where one of R.sup.1 and R.sup.2 is H and the other is phenylamino; Z is --SCH.sub.3 when X is ##STR3## when X is 2-phenylethyl or 2-furanylmethyl; or a pharmaceutically acceptable salt thereof.Type: GrantFiled: April 15, 1993Date of Patent: January 10, 1995Assignee: American Home Products CorporationInventors: Kuo-Hom L. Hsu, Daniel M. Teller, Alan R. Davis, Michael D. Lubeck, Harry R. Munson, Jr., Gunnar E. Jagdmann, Ibrahim M. Uwaydah
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Patent number: 5368145Abstract: A nonsynchronized positive clutch system (200) is provided for selectively rotationally coupling and decoupling a first (46) and a second (42) independently rotatable members. The clutch system includes clutch members (50, 42A) each carrying a number (N) of interengagable clutch teeth (208, 210) which is maximized in view of pitch diameter (214), clutch backlash (216) and durability considerations. By increasing the number of clutch teeth, relative to the prior art (200P), smoother shifting and/or reduced risk of missed engagements is obtained.Type: GrantFiled: February 16, 1993Date of Patent: November 29, 1994Assignee: Eaton CorporationInventor: Alan R. Davis
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Patent number: 5348267Abstract: Apparatus is provided for isolating a sensor from a vibrating surface. The sensor has first and second spaced surfaces, a bore extending between the surfaces and a groove in the second surface. The apparatus includes a flanged sleeve adapted to extend through the bore to the vibrating surface. The sleeve is sufficiently long when extending through the bore to provide a first gap between the vibrating surface and the second surface of the sensor and sufficiently narrow when extending through the bore to provide a second gap between the sleeve and the sensor. The flange overlays the first surface of the sensor and the second gap. The apparatus also includes a bolt, which extends through the bore and into engagement with the vibrating surface, for attaching the sleeve to the vibrating surface. The apparatus also includes a first O-ring positioned between the first surface of the sensor and the sleeve flange and a second O-ring positioned in the groove of the second surface.Type: GrantFiled: September 18, 1992Date of Patent: September 20, 1994Assignee: Eaton CorporationInventors: Mark L. Lanting, Alan R. Davis, Stephen A. Edelen
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Patent number: 5315514Abstract: A control method/system (200) for a control system (104) for semi-automatically executing automatically selected upshifts and downshifts of a mechanical transmission system (10) is provided. The control system includes a central processing unit (106) for receiving input signals indicative of transmission input shaft (16) and output shaft (90) speeds (IS, OS) and processing the same in accordance with predetermined logic rule to issue command output signals to a transmission actuator (112, 70, 96) to implement the selected shifts by automatic shifting into neutral upon a naturally or manually caused torque reversal of the transmission and remaining in neutral until the vehicle operator causes substantially synchronous conditions to occur.Type: GrantFiled: September 16, 1991Date of Patent: May 24, 1994Assignee: Eaton CorporationInventors: Jon A. Steeby, Stephen A. Edelen, Alan R. Davis
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Patent number: 5305240Abstract: Calibration of an X-Y shifter is accomplished under the control of a microcomputer which is programmed to perform a calibration routine each time the vehicle is shutdown. The routine causes the shifter's shift finger to be moved into touching contact with the various inner wall surfaces of the shift blocks of the respective transmission shift rails from which a calibrated shift rail and neutral position are calculated.Type: GrantFiled: November 25, 1992Date of Patent: April 19, 1994Assignee: Eaton CorporationInventors: Alan R. Davis, Daniel P. Janecke, Leo A. Kominek, Chiau-Chieh Ong
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Patent number: 5256668Abstract: Antiviral activity against respiratory syncytial virus has been found in some substituted 6-aminopyrimidines having the formula: ##STR1## wherein R.sup.1 is lower alkyl, preferably methyl or t-butyl, R.sup.2 is halogen or cyano, and R.sup.3 is C.sub.1 -C.sub.6 alkyl or --(CH.sub.2).sub.n R.sup.4 where n is 1 or 2 and R.sup.4 is phenyl, phenyl substituted by lower alkoxy, lower alkyleneoxy, bromo, or 3,4-methylenedioxy; 3 or 4-pyridinyl, pyridinyl substituted by cyano or bromo, thienyl, or di-(C.sub.1 -C.sub.6 alkyl)amino.Type: GrantFiled: March 17, 1993Date of Patent: October 26, 1993Assignee: American Home Products CorporationInventors: Kuo-Hom L. Hsu, Daniel M. Teller, Alan R. Davis, Michael D. Lubeck, Jehan F. Bagli
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Patent number: 5052535Abstract: A positive clutch system (100) is provided for selectively rotationally coupling and decoupling a first (22) and second (38) rotatable member. The total system rotational backlash is distributed to minimize the backlash component (222) dependent upon directions of relative rotation and to maximize the backlash component (220) independent of relative rotation.Type: GrantFiled: August 17, 1987Date of Patent: October 1, 1991Assignee: Eaton CorporationInventors: John R. Vandervoort, Alan R. Davis
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Patent number: 5044216Abstract: An improved electrically controlled, fluid pressure actuated transmission control system (100) is provided. The improved control system includes an anti-default valve (102), preferably a normally closed solenoid controlled valve, fluidly interposed between the system source of pressurized fluid and the various pressurized and/or exhausted chambers of the system piston/cylinder actuator assembly (16).Type: GrantFiled: August 30, 1990Date of Patent: September 3, 1991Assignee: Eaton CorporationInventors: Jon A. Steeby, Alan R. Davis
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Patent number: 4964313Abstract: A two-speed gear train (200) including a first gear (118) and a second gear (120) and drive members (11, 114, 106) for driving the second gear faster than the first gear. A double acting clutch (126) splined to a shaft (28A) has a first and second position for clutching either the first gear (118) or second gear (120) to the shaft (28A). The clutch teeth (134, 136, 138, 140) are provided with specially configured ramps (222) on certain edges (208, 210, 212, 214) to improve clutch engagement.Type: GrantFiled: October 24, 1988Date of Patent: October 23, 1990Assignee: Eaton CorporationInventor: Alan R. Davis
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Patent number: 4920209Abstract: Methods and vaccines for the production of antibodies to infectious organisms are described. Live recombinant adenovirus containing a foreign gene coding for an antigen produced by another infectious organism is delivered to the intestine of a warm-blooded animal in an enteric-coated dosage form, whereupon the virus infects the gut wall and induces the production of antibodies or cell mediated immunity to both adenovirus and the other infectious organism.Type: GrantFiled: June 4, 1987Date of Patent: April 24, 1990Assignee: American Home Products CorporationInventors: Alan R. Davis, Paul P. Hung
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Patent number: 4853333Abstract: There is disclosed a DNA transfer vector capable of replication in either a yeast cell or a bacterial cell and having inserted therein a DNA segment coding for human WA rotavirus surface antigen VP7. The transfer vector carrying the foreign DNA is used to transform yeast cells in order to produce the surface antigen VP7 which is capable of eliciting in vivo production of neutralizing antibodies with respect to human WA rotavirus. The surface antigen VP7 so elaborated and its use in a pharmaceutical vaccine composition are also disclosed.Type: GrantFiled: July 26, 1985Date of Patent: August 1, 1989Assignee: American Home Products CorporationInventors: Chu-lai Hsiao, Bruce B. Mason, Alan R. Davis
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Patent number: 4788889Abstract: A change gear transmission (12) is provided having an input component (16, 24, 26, 26A, 50, 53, 54 and 56), a connecting component (28, 60, 62, 64 and 80) and an output component (74) and includes a coupling (76) for drivingly connecting and disconnecting the connecting component from the output component. Preferably, the coupling is a positive clutch of the type having relatively low backlash between the interengaging clutch teeth (334, 336, 338, 340) to resist asynchronous engagement thereof.Type: GrantFiled: March 19, 1987Date of Patent: December 6, 1988Assignee: Eaton CorporationInventors: Alan R. Davis, John R. Vandervoort