US PATENT SUBCLASS 411 / 15
HAVING SEPARATE EXPANDER MEANS

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

15HAVING SEPARATE EXPANDER MEANS {13}
16  DF  .~> Helical anchor {2}
19  DF  .~> Fluent pressure actuated {1}
21  DF  .~> Having securing element projecting through aperture in sleeve {1}
24  DF  .~> Oppositely acting double wedge expander means {3}
29  DF  .~> With hole forming means {1}
34  DF  .~> Bulged by axially contracting ends {4}
39  DF  .~> Frangible member {3}
44  DF  .~> Including sleeve and distinct tapered expander (e.g., anchor bolt type) {9}
55  DF  .~> Threaded expander
75  DF  .~> Relatively sliding wedge surfaces {4}
80.1  DD  .~> Comprising a head and expandable portions spread by fastener (e.g., drywall anchor) {1}
80.5  DD  .~> Sleeve type (headless) with longitudinal slot, slit, or split expanded by fastener {1}
32  DF  .~> Made up of plural expansible segments or sections {1}

DEFINITION

Classification: 411/15

HAVING SEPARATE EXPANDER MEANS:

(under the class definition) Subject matter wherein the longitudinal extent of a holding device or an anchor can be increased and means are provided to effect this increase in dimension.

(1) Note. The increasing means of this subclass includes but is not limited to a wedge-shaped mandrel, fluid pressure, a screw (tapered or straight shanked) for applying and expanding force to the holding device, cooperating sloped faces, etc.

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings),

157+, for an auger anchor insertable in the ground; and subclasses 698+ for an anchor embedded in a settable material, connected to a subsurface member or conformed to a specially modified base, and see the note in subclass 698 for the line.

405, Hydraulic and Earth Engineering, appropriate subclasses for expanding anchors or holding devices used with tunnels. As between Classes 411 and 405, Class 405 takes a rock bolt having means to grout it in place or earth anchors combined

with retaining walls or like structures which are desired to be secured to the earth. In addition, Class 405 takes rock bolts combined with specific roof-supporting systems or such bolts combined with support plates where the plates have a roof support, e.g., load-bearing features, hangers, peculiar terrestrial coacting features, etc. Class 405 is the repository for the support plates, per se, which are associated with rock bolts. Class 411 takes expanding anchors, per se, even though they are solely disclosed as being rock bolts or such anchors associated with nominal roof support plates.