Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 4838264 | Torque limiting device for use with bone penetrating pins A bone penetrating pin for medical use includes, in one embodiment, a shank provided at one end with a bone penetrating element of titanium or single crystal alumina ceramic material, and a driving head at the other end. A removable cap is applied to the ... | 06/13/1989 |
| 4832549 | Rotary welding member made of resin A rotary welding member made of synthetic resin material comprising a post portion, and a disk-shaped flange portion integrally mounted on one end of the post portion and having a plurality of through holes in the direction of wall thickness thereof for t... | 05/23/1989 |
| 4819522 | Torque-off collar for installation by universal equipment A torque-off collar having a circular driver section which can be gripped at any rotational angle by a torque tool, and a set of such collars of different size by having driver sections of equal size. A robot tool can randomly grasp such a collar, and can... | 04/11/1989 |
| 4794672 | Quickly attachable button arrangement Quickly attachable button arrangement (1) comprising a button head (2) having integrally formed therewith a combined button-head holding and attachment device (5) for holding the button head on and attaching the button head to a piece of material (3). The... | 01/03/1989 |
| 4679966 | Roof bolt apparatus with expansion shell and coupling An elongated rod with an expansion shell assembly positioned on the upper end thereof is advanced into a bore hole drilled in rock formation behind a resin cartridge system. The lower end of the rod is connected by a coupling to the upper end of a bolt ha... | 07/14/1987 |
| 4678374 | Roof bolt with expansion shell and threaded nut An elongated rod with an expansion shell assembly positioned on the upper end portion thereof is advanced behind a resin cartridge system into a bore hole drilled in a rock formation. A bearing plate and a stop nut are positioned on the end of the rod eme... | 07/07/1987 |
| 4662806 | Metal lock system and method Apparatus for repairing a casting having a crack therein comprising a metal lock to extend across the crack and a lacing plug to fit in the crack, the metal lock formed as a rigid elongate member having a plurality of lobes formed from adjacent portions t... | 05/05/1987 |
| 4595315 | Anchor bolt assembly An anchor bolt assembly for mounting within a bore formed in a rock structure, to strengthen the rock structure, comprises a shaft having a leading section and a bottom threaded section. A nut which may be attached to a face plate washer is threaded onto ... | 06/17/1986 |
| 4477209 | Anchor bolt assembly The anchor bolt assembly is of the type used in mine roofs where the anchor bolt is assembled and positioned in a drill hole in a rock formation and in which quick-setting adhesives secure the assembly to the rock formation. The assembly includes an elong... | 10/16/1984 |
| 4436273 | Fastening means for rearview mirror in automobile interior A fastening means for a rearview mirror in an automobile interior, which comprises a fastening base formed on the supporting arm of the rearview mirror and a fitting member for securing the fastening base on the automobile body by using a setscrew. The fi... | 03/13/1984 |
| 4290337 | Fastener set A fastener set comprising a bolt body, a nut and a washer which are fitted onto the bolt body. Said bolt body has a notched portion which can be broken by a predetermined torsional force. Said nut is coated by a composition containing a ester obtained by ... | 09/22/1981 |
| 4258607 | Vibration resistant screw The shank of a self tapping screw has a thread forming section, a threaded section, and a reduced diameter section interconnecting the forming and threaded sections. The thread forming section forms internal threads into a known thread form that has a wed... | 03/31/1981 |
| 4194806 | Connector A connector such as for a manually installable fuse having a stud threadedly engageable with a nut, with mechanism for signalling the installer when the correct threaded engagement has been achieved and for establishing improved electrical conductivity at... | 03/25/1980 |
| 4158377 | Captive screw device This captive screw device consists of a resilient retaining support for holding screws in predetermined positions in alignment with or within through holes formed in a member to be fastened by said screws to another member or a structure. Each support com... | 06/19/1979 |
| 4157195 | Junction coupling for providing a fluid flow branch from a main conduit The invention provides a junction coupling for branching a flow of fluid from a pipe or conduit. The junction coupling is essentially C-shaped and is dimensioned partly to surround such pipe or conduit. Opposite limbs of the C-shaped member carry, on the ... | 06/05/1979 |
| 4149434 | Screw and screwdriver therefor A screw having an annular socket formed concentrically in the outer surface of its head, with at least a pair of radial walls in said socket, and adapted to be used with a pair of special tubular drivers adapted to be inserted coaxially into said socket a... | 04/17/1979 |
| 4137816 | Expansion dowel with a setting control An expansion dowel consists of a sleeve, a tie rod extending through the sleeve with an end support on one end of the tie rod and an expanding body on the other end. The end support can be a bolt head or a nut. By applying torque to the end support the ex... | 02/06/1979 |
| 4122753 | Expansion anchor assembly including an interconnecting device In a straddling dowel or expansion anchor assembly, a threaded bolt or stud has a head or nut adjacent one end for securing a member onto a support structure. The bolt is threaded into one end of a sleeve-like member and a threaded projection extends axia... | 10/31/1978 |
| 4091841 | Pressure plug and method A pressure plug comprising a radially expandable sleeve and an inner member within the sleeve. The sleeve has a tapered passage extending in a generally axial direction through the sleeve. The inner member includes a plug, an installation pin, and a break... | 05/30/1978 |
| 4068555 | Inherently torque-limited nut An inherently torque-limited nut including a nut body having an internal shank-receiving threaded opening to engage a mating thread on a shank. A drive ring is held to the nut body by engagement means and includes inherent limiting means which limit the t... | 01/17/1978 |
| 4053982 | Dental anchor A dental anchor is disclosed comprising an elongated member for anchoring a superstructure to a tooth. The elongated member includes at least one threaded section defining an anchoring portion that is attached to an L-shaped manipulating section by a redu... | 10/18/1977 |
| 4021892 | Adjustable security straps The invention relates to straps which include an elongate strap portion, a housing at one end of the strap and a screw member which is adapted to be positioned in the housing to draw the strap portion through the housing. In particular, the invention rela... | 05/10/1977 |
| 3963322 | Torque controlling set screw for use with the cable of solderless connectors, or the like In certain applications, such as solderless cable connectors, a set screw is used to provide the connection between two or more current conductors. The set screw should be tightened to no more than a predetermined tightening torque. This is automatically ... | 06/15/1976 |
| 3937121 | Double break-off screw A double break-off screw fastener is described, which conceals its mode of fastening by means of a "dummy" free-floating middle shaft. The inventive screw contains three sections, a threaded section which does the actual fastening; a middle shaft section ... | 02/10/1976 |