1
Butin Robert R, Keller James P, Harding John W: Non-woven mats by melt blowing. Exxon Research and Engineering Company, Burgess Timothy L, Roth David A, November 19, 1974: US3849241 (1136 worldwide citation)

Melt blown non-woven mats prepared from thermoplastic polymer fibers and substantially completely free of polymer shot are produced at high polymer throughput rates in an improved melt blowing process in which thermoplastic polymer resins, preferably polypropylene, having initial intrinsic viscositi ...


2
Buell Kenneth Barclay: Tape fastening system for disposable diaper. The Procter & Gamble Company, Linman E Kelly, Braun Frederick H, Gorman John V, November 19, 1974: US3848594 (417 worldwide citation)

An improved tape fastener system for stronger securement of a tape fastener to corners of a disposable diaper, especially for diapers having relatively weak and/or extensible members. The tape fastener system has several elements which are parallel and are attached to the front and back surface of t ...


3
Ma Gabriel W C, Poulson Don E: Method for interbody fusion of the spine. Geauque Robert E, November 19, 1974: US3848601 (409 worldwide citation)

Three units of surgical apparatus for interbody fusion of the spine and method of use. The first unit consists of an intervertebral mortising chisel with the inner drill bit used to remove a block of tissue of specified dimension. The second unit consists of the bone plug cutter with the inner bone ...


4
Patrick Jr Charles T, Milligan Charles L: Indifferent electrode in electrosurgical procedures and method of use. NDM Corporation, Irons & Sears, November 19, 1974: US3848600 (134 worldwide citation)

A disposable indifferent electrode easily contoured to body surfaces including an electrode electrolyte assembly in which the electrode is relatively small in size yet provides very effective electrical contact between it and the body surface by virtue of an interposed electrolyte composition of pre ...


5
Barzynski Helmut, Jun Mong Jon, Saenger Dietrich, Volkert Otto: Lithographic printing plates and photoresists comprising a photosensitive polymer. Badische Anilin & Soda Fabrik Aktiengesellschaft, Johnston Keil Thompson & Shurtleff, November 19, 1974: US3849137 (129 worldwide citation)

Photosensitive coating materials comprising polymers containing o-nitrocarbinol ester groups, particularly of polymers and copolymers of o-nitrocarbinol esters of ethylenically unsaturated carboxylic acids, which as a result of exposure become soluble in an alkaline solvent used as developer in whic ...


6
Evans Arthur: Fixed point probe card and an assembly and repair fixture therefor. Wentworth Laboratories, November 19, 1974: US3849728 (113 worldwide citation)

A probe card for testing integrated circuit patterns having contacts deployed thereon, the patterns being formed in a microelectronic substrate. The card includes an opening providing access to a pattern and a ring of spaced conductive pads surrounding the opening. Anchored on selected pads are need ...


7
Smith John W: Tray unit. Schmidt Johnson Hovey & Williams, November 19, 1974: US3848745 (103 worldwide citation)

A tray unit for vending items of merchandise or the like is provided with automatic merchandise-advancing means which includes a roll of extensible sheet material having a memory which renders it self-winding such that the merchandise items in the tray are automatically shifted forwardly in the tray ...


8
Gwynne Thomas: Cementitious building board with edge reinforcing strips. BPB, Kurlandsky Esq Samuel, Hadley Esq Stanton T, Roberts Esq Kenneth E, November 19, 1974: US3849235 (102 worldwide citation)

The invention relates to cementitious building board, such as gypsum board, having reinforcing strips along one or more of its edges. Such strips can be incorporated in such board faced with paper or other sheet material by cutting back the core leaving the edges of the sheets projecting, applying t ...


9
Van Baggem Johannes Wilhelmus: System for determining the listening and viewing habits of wave signal receiver users. Intomart, Breiner A W, November 19, 1974: US3849729 (101 worldwide citation)

The invention relates to a system and device for recording the tuning and working condition of a radio or television set. A record codes the time of any channel change as well as data about operating time after the change. The coding is characterized by means of a series of binary tones identifying ...


10
Flavell Evan R: Proportioned resistance exercise servo system. Owen Wickersham & Erickson, November 19, 1974: US3848467 (98 worldwide citation)

A proportional resistance exercise servo device. User interfacng means is connected to a drive shaft so that the user applies force to said drive shaft and vice versa. The device applies braking force to the drive shaft as it is rotated in a first direction by user-exerted force on the interfacing m ...