Patents Examined by James C. Mitchell
  • Patent number: 4289288
    Abstract: A split ring grommet for use in routing electrical cables, and the like, through aircraft bulkheads is disclosed. The grommet has a flange which is formed at one end thereof and tabs on its outer surface. The grommet is designed so that when it is inserted into the hole in a bulkhead the tab and flange engage the edge of the bulkhead which forms the periphery of the hole. A clamp is provided for securing the opposing faces of the split ring grommet. The clamp slips over the non-flanged end of the grommet and has locking members which fit into slots in the grommet on either side of the opposing faces. The tabs and locking members are spring biased so as to insure a tight fit between the grommet and the bulkhead. Electrical cables, hydraulic tubing and the like are secured by straps which engage both the cables and the grommet.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: September 15, 1981
    Assignee: The Boeing Company
    Inventors: N. Keith Gransberry, Allen C. Haggerty
  • Patent number: 4244543
    Abstract: An expansion roller or rocker assembly is provided for use in raising and supporting a length of expandable conduit, e.g. tube or pipe, and also permitting free longitudinal movement of the pipe upon its expansion and subsequent contraction without any rigid connection to the pipe itself. The expansion roller or rocker assembly is specially adapted for use when numerous pipes in complex networks are supported by overhead stanchion configurations, having tiers of horizontal support members, whereby expansion loops therein can be utilized without the necessity for blocking pipe routes and, in the case of steam lines, without the necessity for steam traps. All of this is accomplished without putting a torque on the support stanchion or beam.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: January 13, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventor: Ernest A. Ericson
  • Patent number: 4240300
    Abstract: An operation mechanism comprises an input shaft connected to a first resilient member for storing and releasing energy required for a reciprocal movement of a drivable member and an output shaft connected to a second resilient member for storing and releasing energy required for returning the drivable member. The ends of both shafts are coaxially faced and a clutch for interlocking the ends of the shafts with a free rotation for a half turn is formed and an output rod connected to the output shaft is reciprocally moved during an intermittent movement of the input shaft and the output shaft for about a half turn in a specific direction.
    Type: Grant
    Filed: August 8, 1978
    Date of Patent: December 23, 1980
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Katsufusa Tanaka
  • Patent number: 4235408
    Abstract: A swinging-seat swivel chair includes a vertical stud that carries a horizontal hollow pin at the end of which are pivoted two supporting arms for a seat. A torsion bar is housed in the interior of the pin with one end coupled to the pin and the other end coupled to the arm at the other end of the torsion bar. A rigid longitudinal member is included substantially parallel to and spaced from the pin and rigidly interconnecting the arms.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: November 25, 1980
    Assignee: Knoll International, Inc.
    Inventor: Richard F. Sapper
  • Patent number: 4235473
    Abstract: Furniture is constructed from a plurality of units, each unit having a uniform thickness and a pair of parallel side faces with at least one shaped edge surface. The composite of the edge surfaces of the units, when arranged in a predetermined, spaced face-to-face relationship, defines at least one functional surface of the furniture piece. A plurality of discrete spacer means, the function of which can be fulfilled by a second plurality of similar or dissimilar units, are disposed between the opposed side face of the units, so as to space the units from one another in the desired spaced relationship and the units and spacing means are held in this relationship through interconnecting means. Second, third or more pluralities of different units can be employed, the units of any given plurality being interposed between the opposed faces of units of another plurality.
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: November 25, 1980
    Inventor: Antonio F. Aginar
  • Patent number: 4235323
    Abstract: There is disclosed a slip clutch useful for the fixed adjustability of an indexed knob on a control shaft of a device such as thermostatically controlled gas valve for a water heater. The clutch comprises the assembly of a shaft with a reduced end portion to provide an annular distal shoulder, a ring received over the end and having a radial tab, a spring washer also received over the end of the shaft and resiliently biasing the ring against the annular shoulder and an outwardly flared end of the shaft to secure the assembly. The end of the shaft is hollow form and has internal wrench flats so that the shaft can be immobilized and the ring rotated about the shaft. The control knob is received over the ring and has a radial slot which receives the radial tab.
    Type: Grant
    Filed: June 9, 1978
    Date of Patent: November 25, 1980
    Assignee: Robertshaw Controls Company
    Inventor: Theodore J. Dykzeul
  • Patent number: 4234147
    Abstract: An improved shaft-clamping device is provided utilizing a loop-bolt which wraps spirally around the shaft, or pipe to be clamped to another member, and such member is provided with a pair of spaced mounting apertures, through which the legs of the loop-bolt project, and have fastening means secured thereto, such as nuts, for example.Preferably, to increase the friction between the loop-bolt, or shaft-clamping device to the shaft, or pipe, the loop-bolt is threaded. This not only increases the frictional relationship between the shaft, or pipe and the other member, to which the shaft, or pipe is to be clamped, but, additionally, the threaded condition of the legs of the loop-bolt allow the clamping nuts to be threadedly secured thereto without further manufacturing operations. Heat treatment of the threaded loop-bolt brings the best result since the biting action is increased and the loop-bolt can be reused without flattening the threads.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: November 18, 1980
    Assignee: Cleaveland/Price Enterprises, Inc.
    Inventors: Charles M. Cleaveland, Peter M. Kowalik
  • Patent number: 4231540
    Abstract: A mirror connector is provided which enables a rectangular rear view mirror of the type customarily used on pick-up trucks and the like to be realigned from its normally vertically aligned longitudinal axis position to a horizontally aligned longitudinal axis mounting. The connector can be used with the original frame to which the mirror was originally mounted. Such a realignment permits the driver of the vehicle a wider view of the area behind the vehicle such that more lanes of roadway are visible than in the original mounting position of the mirror.
    Type: Grant
    Filed: December 14, 1978
    Date of Patent: November 4, 1980
    Inventors: Rodney A. Duncan, Wendel W. Hall
  • Patent number: 4231300
    Abstract: The assembly includes a shelf bracket for constructing shelving from spaced elongated shelf boards that have a standard thickness. An elongated leg of rectangular cross section includes a longitudinal groove formed into one of its major surfaces. A pair of U-shaped clips each are in the form of a pair of plates joined by a flat bight with the widths of the plates being spaced apart for snug engagement with a marginal edge portion of a shelf board. The bight seats tightly in the groove and preferably has a thickness substantially equal to the depth of the groove. The clips are individually secured in respective different spaced portions of the groove with the bight seated therein.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: November 4, 1980
    Inventor: John S. Shepard
  • Patent number: 4231614
    Abstract: An improved wheelchair for mechanically assisting in moving a disable person between a sitting and a standing position. A method and apparatus for automatically coordinating the movements of the feet, lower-leg, thigh, seat and back, including the initial pivotal raising of the lower-leg and foot followed by a reversal of direction as the upper-leg and back commence pivotal movement to achieve preliminary alignment of the leg prior to achieving complete upright alignment of the entire body. A lever mechanism having a forward lever arm coupled to a lower-leg support through a cam, and a rearward lever arm coupled to a seat and/or back through a delayed-action channel member.
    Type: Grant
    Filed: October 27, 1978
    Date of Patent: November 4, 1980
    Inventor: Gene P. Shaffer
  • Patent number: 4230365
    Abstract: An article of furniture, and a method for making same, the furniture comprising a self-supporting peripheral frame, having an open central region, and a fabric sleeve, covering said peripheral frame and providing a body support surface. The peripheral frame, which comprises two side rail members and a plurality of braces connecting the rail members, defines a body contour. The fabric sleeve may be impregnated with a resinous material, thereby providing a substantially rigid body support surface, or padding may be disposed between the fabric sleeve and the peripheral frame, thereby providing a softer body support surface. The fabric sleeve may be a one-piece, two-way stretch member, such as different types of knitted materials or a non-stretch member of different types of woven materials. The article of furniture may be formed as a chair, a lounger or recliner or a foot rest.
    Type: Grant
    Filed: January 18, 1979
    Date of Patent: October 28, 1980
    Inventor: Alexander Messinger
  • Patent number: 4229039
    Abstract: A travel chair includes a back pivotable both forwardly and rearwardly and pivotable underneath the chair to form a generally triangular arrangement for ease in carrying and further includes detachable wheels for use of the chair in automobiles and the like. The chair further includes a pair of spring means for biasing the rear legs in a rearward direction and means for removably securing and adjusting the footrests, as well as spring-biasing means for urging the rear handles in a locked position. Finally, front handles are pivotable in vertical and horizontal directions, and a head restraint is provided.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: October 21, 1980
    Inventor: Frederick L. Day
  • Patent number: 4229040
    Abstract: A lightweight, economically constructed support structure for vehicle seats having a minimum number of components having a substantial commonality and a number of interchangeable components. The seat support structure includes a pair of spaced horizontal tubular members which extend beneath individual seating stations. These tubular members are maintained in a predetermined spaced relationship by a multiplicity of spacing members each located adjacent to the individual seating stations and adapted to support the pivotable armrest situated between each seating station. The horizontal tubular members and associated structure support a diaphragm of fabric or the like at each seat location which is stretched between and fastened to the forward tubular member and a plate member supported and located in proximity to the rear tubular member. These diaphragms are adapted to support the individual seat cushions at each seat location.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: October 21, 1980
    Assignee: Fairchild Industries, Inc.
    Inventors: Russell B. Howell, Ralph G. Marrujo
  • Patent number: 4228980
    Abstract: A bracket and a system adapted to hang a curtain and, in particular, a valance to advantageously provide for easy and neat installation, to effectively conceal the head and the space at the top of a curtain and to even conceal the bracket itself. This bracket is formed of a resilient strip bent to define a hook portion and a fixing portion with the hook portion having a pair of spaced-apart upright portions and the fixing portion outwardly projecting from the upper end of one upright portion away from the other upright portion to be fixed to a ceiling. This curtain hanger system includes a flat bar securable lengthwise along the head of a curtain or valence and one or more of the defined brackets, such that the flat bar operatively engages laterally edgewise between the upright portions to be clamped by the latter with its upper edge bearing against the ceiling.
    Type: Grant
    Filed: November 9, 1978
    Date of Patent: October 21, 1980
    Inventors: Pierre Beauchamp, Augusto Di Giacomo
  • Patent number: 4227742
    Abstract: A wheelchair includes an improved, retractable multi-position leg rest apparatus. The leg rest is attached to the frame of the footrest of the wheelchair in a conventional manner. The leg rest cushion is carried on a frame which slidably engages the footrest frame. A rotatable U-shaped transverse member comprises part of the leg rest frame and is adapted to selectively engage a hook on the underside of the leg rest cushion to lock the rear end of the cushion in an elevated position. The rear of the leg rest cushion can be lowered by disengaging the tubular member from the hook. A T-shaped member also comprises part of the leg rest frame and is connected to the front edge of the underside of the cushion. The T-shaped member includes a pair of telescoping elements which house a spring-loaded pushbutton and a spring urged stop mechanism for locking the front edge of the leg cushion in at least three separate vertical positions.
    Type: Grant
    Filed: January 30, 1979
    Date of Patent: October 14, 1980
    Assignee: Temco Products, Inc.
    Inventor: Morton I. Thomas
  • Patent number: 4226472
    Abstract: The unattached base of the present invention includes a spacing element and two stop members integrally formed with, but extending perpendicularly from, the spacing element. The spacing element establishes a predetermined distance between the inside surfaces of the stop members. The stop members also have predetermined heights and lengths.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: October 7, 1980
    Inventor: Eldon R. Mathis
  • Patent number: 4226190
    Abstract: A display rack having a back wall, and at least two side walls, and having hinge means interconnecting between respective side walls and the back wall, such hinge means being located at spaced apart intervals whereby the side walls may be swung flat against the back wall for shipping, and may be swung away therefrom for erection, and having shelving dimensioned to fit between the two side walls when the same are swung apart and the shelving having fastening means integral therewith interengageable with the side walls whereby the shelving may be secured along either side edge to respective side walls, in supporting relation thereto, and at the same time interlocking such side walls together is predetermined spaced apart relation so that they are no longer swingable with respect to the back wall, and forming a rigid three-dimensional structure.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: October 7, 1980
    Inventor: Richard D. A. Ashton
  • Patent number: 4226390
    Abstract: A device for mounting an accessory on a generally vertical column. The column preferably forms part of a support for an anaesthetic or like machine. The mounting device comprises a ring clamp adapted to engage the column at a chosen location (which may be adjustable), a split bearing adapted to embrace the clamp so as to be capable of only pivotal movement about the clamp and column, and means for securing an accessory onto one element of the bearing.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: October 7, 1980
    Assignee: Medishield Corporation Limited
    Inventor: Christopher L. Steggall
  • Patent number: 4225179
    Abstract: A removable furniture covering adapted to transform a common seating structure, such as a deck chair, into a furniture article which can be suitably used in a living room or the like. The covering slips onto and may be fastened to the base seating structure.
    Type: Grant
    Filed: December 13, 1980
    Date of Patent: September 30, 1980
    Inventor: Lucchino Oltrona Visconti
  • Patent number: 4225181
    Abstract: A rugged and stylish wooden chair shippable in compact knock-down form includes separate prefabricated back and arm subassemblies with lower portions proportioned to serve as contour-blended marginal parts of the seat of a seat-leg assembly, the cooperating sub-assemblies being readily united and fastened together securely and unobtrusively with the aid of laterally-extending dowels and bolts. Major stresses occurring at joining sites are advantageously in shear and are reliably resisted by both the dowels and the bolts, and corner posts for the back are prefabricated as parts of the arm sub-assemblies to realize outstanding structural strength. Rocker runners may be fastened to the lower ends of the seat legs, in a rocking-chair embodiment, and each runner thereof is provided with one leg-socket and fastener opening of elongated form accommodating the somewhat coarse leg-spread tolerances expected for the seat subassemblies.
    Type: Grant
    Filed: April 17, 1979
    Date of Patent: September 30, 1980
    Assignee: Albert M. Lock & Son, Inc.
    Inventors: Melvin N. Lock, Achille F. Chiappetta