Patents Assigned to Federal-Hoffman, Inc.
  • Patent number: 5852858
    Abstract: A non-toxic highly frangible training round bullet, and a method of making same, in which a plurality of segments of non-toxic metal selected from a group including zinc, iron, steel and copper are grouped or arranged within pressure-molding equipment and sufficient pressure is applied thereto to cause such segments to inter-engage and cohere, one to another, while being formed into a desired shape of bullet and retaining their individuality at least to a limited extent. Upon impact with a target, such a bullet fragments to a large extent along at least some of the original physical boundary lines of the original segments into new segments which are relatively small as compared to the size of the original segments. There is no substantial ricocheting or "bounce-back" activity associated with such fragmentation and, of course, there are no toxic effects.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: December 29, 1998
    Assignee: Federal-Hoffman Inc.
    Inventors: John M. Hallis, Richard W. Proulx
  • Patent number: 5852255
    Abstract: A non-toxic, highly frangible elongated soft-point training round bullet core which will disintegrate upon striking its target, for use in a training round in training exercises for law enforcement personnel and having a central heart of non-toxic metal selected from a group consisting of zinc, iron, steel, and copper with a plurality of wires of non-toxic metal selected from that group twisted around said heart throughout its length prior to being swaged into deforming and inter-engaging relation with the heart, and the core having been subsequently swaged into the shape of a soft-point nose of a bullet, with pressures sufficient to cause the strands of wire and the heart to inter-engage and deform while retaining their individuality at least to a limited extent, whereupon substantially all of the strands of the core, upon the core being fired and striking a target, will fragment along at least some of their original physical boundaries into discrete fragments smaller than the original size of the bullet.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: December 22, 1998
    Assignee: Federal Hoffman, Inc.
    Inventors: John M. Hallis, Richard W. Proulx
  • Patent number: 5736194
    Abstract: A masking apparatus and method is utilized for masking preselected areas of articles which are to be coated. The masking apparatus includes several embodiments which generally include a planer member with expandable member for engaging the article. Quarter turn latches may be utilized to hold and position the masking apparatus. The present invention provides for combining various embodiments to adapt to articles having various configurations using various combinations of the masking apparatus embodiments.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: April 7, 1998
    Assignee: Federal-Hoffman, Inc.
    Inventors: Charles LeRoy Bedbury, James Harold Anderson
  • Patent number: 5722121
    Abstract: A hinge (20) includes a hinge body (30) pivotally connected with a hinge pin (70) to a leaf (26). The hinge body (30) includes a base (32) supporting a riser portion (36) connected to knuckles (34). The hinge body is configured so that geometry holds a pin retaining member (50). The retaining member (50) includes a portion (56) inserting into a side opening (46) of the knuckles (34) which engages angular groves (74) and (76) formed in the pin (70).
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: March 3, 1998
    Assignee: Federal-Hoffman, Inc.
    Inventors: Robert Gerald Lau, Craig E. Schinzel
  • Patent number: 5704100
    Abstract: The present invention is a mounting clip system that is operable to mount two foreign surfaces to one another. The mounting clip system includes a cylindrical member with a first and second end with the first end adapted for mounting the cylindrical member to a foreign surface and the second end adapted for engaging the housing; this housing has a mounting surface, a slot formed therethrough and an aperture located in opposing arrangement to the mounting surface; and a retaining pin adapted to attach to the housing through the slot formed therein and releasably attached to the cylindrical member when the cylindrical member is inserted into the aperture of the housing.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: January 6, 1998
    Assignee: Federal-Hoffman, Inc.
    Inventor: David A. Swan
  • Patent number: 5683005
    Abstract: Apparatus is provided for mounting components in enclosures such as electrical junction boxes and the like. The apparatus includes a bracket, which is attached to a surface of the enclosure, and a mounting element, which is attached to the bracket. The bracket can be mounted in one of two preferred orientations, each orientation affording a different mounting height for the mounting element. The mounting element may be attached to the upper or lower surface of the bracket in either of its preferred orientations, or may be clamped between the bracket and the surface of the enclosure. Flexible arrangement of the components within the enclosure is possible through the selection of a preferred bracket orientation and a preferred mounting position for the mounting element.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: November 4, 1997
    Assignee: Federal-Hoffman, Inc.
    Inventor: Brian L. Mordick
  • Patent number: 5679920
    Abstract: A non-toxic highly frangible training round bullet, and a method of making same, in which a plurality of segments of non-toxic metal selected from a group including zinc, iron, steel and copper are grouped or arranged within pressure-molding equipment and sufficient pressure is applied thereto to cause such segments to inter-engage and cohere, one to another, while being formed into a desired shape of bullet and retaining their individuality at least to a limited extent. Upon impact with a target, such a bullet fragments to a large extent along at least some of the original physical boundary lines of the original segments into new segments which are relatively small as compared to the size of the original segments. There is no substantial ricocheting or "bounce-back" activity associated with such fragmentation and, of course, there are no toxic effects.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: October 21, 1997
    Assignee: Federal Hoffman, Inc.
    Inventors: John M. Hallis, Richard W. Proulx
  • Patent number: 5666695
    Abstract: A hinge includes a first leaf member with a pair of knuckles receiving a hinge pin therethrough. The knuckles include a retainer member which extends into the path of the pin. Annular grooves formed in the pin receive the retainer member to keep the pin from easily sliding in and out of the hinge. One of the grooves includes a straight side and a tapered side while the second groove includes a pair of tapered sides for allowing the retainer member to slide over the second groove but not over the first groove. In this manner, the pin may not be forced beyond the retainer member and is held in place even when pulled out of the first knuckle for removing secondly.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: September 16, 1997
    Assignee: Federal-Hoffman, Inc.
    Inventors: Viktor J. Jegers, Robert G. Lau, David A. Swan
  • Patent number: 5664448
    Abstract: A locking handle for an access door includes a housing with a cam rotatably mounted within the housing. The cam is connected to a locking pin for the pin to move transversely in response to rotational movement of the cam. A locking bar is slidably received on the housing and moved to a locked position to prevent rotation of the cam.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: September 9, 1997
    Assignee: Federal-Hoffman, Inc.
    Inventors: David A. Swan, Robert G. Lau
  • Patent number: 5642909
    Abstract: A latch system which includes a latch bar slidable up and down on an interior of an enclosure door. The latch system has a rack member mounted on the latch bar extending through an orifice in the door to engage an actuator on the exterior of the door. The latch bar has glides and retainer clips mounted to the latch bar for positioning the bar relative to the door. The door may include a gasket for sealing an enclosure, with the latch bar mounting outside of the sealed area. Retainer fingers include a roller which engage a latch catch mounted to the enclosure frame. The finger members and the rack members are reversible for mounting in either direction so that the door may be reversed at any time. The latch catches are configured for receiving a finger member at either end for engagement of the door.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: July 1, 1997
    Assignee: Federal-Hoffman, Inc.
    Inventors: David A. Swan, Robert Gerald Lau
  • Patent number: 5638648
    Abstract: A door panel for an electronics enclosure or cabinet is disclosed. This door panel includes a window opening, over which is placed a windowpane, anchored to the door panel by bonding material. The bonding material is extruded into a cavity formed by the rearwardly turned edges of the door panel window opening and the overlapping edges of the windowpane. This construction seals the door panel window opening from dust, moisture, or other airborne contaminants, provides an exacting tolerance for anchoring the window in place with very few parts, and enhanced aesthetics.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: June 17, 1997
    Assignee: Federal-Hoffman, Inc.
    Inventor: Ronald J. Rotondo
  • Patent number: 5634357
    Abstract: A latch handle (20) includes a grip portion (22) and a housing portion (24) with a spindle (28) extending therefrom to actuate a latch. The handle (20) rotates about an escutcheon (26) and is configured for receiving two or more padlocks. The handle grip portion (22) includes a padlock receiving portion (32) while the escutcheon (26) has a raised portion (34) aligning with the lock receiving portion (32). The escutcheon (26) takes on a second embodiment (126) for rotation in an opposite direction. A defeater device (30) includes a retainer (40) coupled to a plunger member (50). The plunger member (50) slides axially within a bore (70) and rotates relative to an insert (60). The insert includes a cammed surface (62) which receives tabs (52) of the plunger member (50). The plunger member (50) is biased by compression spring (48) and torsion spring (56) to urge the tabs (52) against the cammed surface (62) so that the plunger member (50) moves axially as the retainer (40) is rotated.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: June 3, 1997
    Assignee: Federal-Hoffman, Inc.
    Inventors: Curtis F. Nutter, Jim I. Myers
  • Patent number: 5630632
    Abstract: A quarter turn latch (10) includes a latching member (12) connecting to an actuating member (14). The latching member (12) and actuating member (14) snap together from opposite sides of a mounting surface member (100). The latching member (12) includes a cam member (20) for engaging the complimentary latch member (102) to retain it against the mounting surface member (100). The mounting surface has a depressed portion (16) with an orifice (18) formed therein. The orifice has opposed straight sides (70) and rounded end portions (72). The actuating member includes a barrel shaped body (24) having opposed rounded larger radius corner portions (32) and opposed squared corner portions (34). The actuating member provides for rotation along the rounded portions (32) against the end portion (72) and straight side (70) while the squared portions (34) engage the straight side portion (70) to limit rotation to one quarter turn.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: May 20, 1997
    Assignee: Federal-Hoffman, Inc.
    Inventor: David A. Swan
  • Patent number: 5610367
    Abstract: A lead-free rim-fire primer mix which utilizes cupric azide, a highly sensitive chemical, as the primary explosive in lieu of lead styphnate. The cupric azide is mixed with carefully selected proportions of nitrocellulose, tetracene, fine particles of ground glass and a binder, typically gum tragacanth. When mixed in the proper proportions, this mix has the required sensitivity, stability, and non-hygroscopicity for regular commercial rim-fire ammunition. The tetracene is not required as a sensitizer, but is used as an ignition aid. The preferred range of percentages are 10-36% by weight of cupric azide, 5-10% by weight of tetracene, 15-30% by weight of nitrocellulose, 20-50% by weight of glass, and 1-2% by weight of a suitable gum.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: March 11, 1997
    Assignee: Federal-Hoffman, Inc.
    Inventors: Jack A. Erickson, John M. Melberg, Robert L. Kramer, John M. Hallis
  • Patent number: 5582042
    Abstract: A double lock apparatus (10) includes interconnected locking members (12) connected by a retainer pin (14). The members include arcing slots (22) and a pair of orifices (24) and (26). Each of the locking members includes an arcing slot arcing in an opposite direction and centered on the opposite of the orifices (24) and (26). The external lock members (42) and (44) insert through the orifices (24) and (26) to prevent pivoting. Removal of one of the external lock members (42) or (44) allows pivoting about the other lock member with the retainer pin sliding along one of the arcing slots (22). The pivoting motion separates retainer finger portions (20) to allow unlatching. The devices (10) may be connected in a series for providing unlocking by removal of one of a number of external locks.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: December 10, 1996
    Assignee: Federal-Hoffman, Inc.
    Inventor: Brian L. Mordick
  • Patent number: 5547528
    Abstract: An improved non-toxic primer which is devoid of metallic oxidizing compounds and of hygroscopic compounds and is comprised of 30-75% by weight of at least two percussion-sensitive compounds selected from a group consisting of a diazo, a triazole, and a tetrazole compound mixed with approximately 10-30% by weight of a suitable propellant, and a frictionator comprised preferably of approximately 12% by weight of calcium silicide and 8% by weight of fine particles of glass. The glass preferably has a particle size of dimensions less than 0.0021". The primer provides improved propellant ignition, non-toxic ignition products, improved ballistic data, and greatly minimizes misfires.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: August 20, 1996
    Assignee: Federal-Hoffman, Inc.
    Inventors: Jack A. Erickson, Robert L. Kramer, John M. Hallis
  • Patent number: D371300
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: July 2, 1996
    Assignee: Federal-Hoffman, Inc.
    Inventor: Brian L. Mordick
  • Patent number: D385768
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: November 4, 1997
    Assignee: Federal-Hoffman, Inc.
    Inventors: Curtis F. Nutter, Jim I. Myers
  • Patent number: D391143
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: February 24, 1998
    Assignee: Federal-Hoffman, Inc.
    Inventor: John Joseph Jancsek
  • Patent number: D393636
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: April 21, 1998
    Assignee: Federal-Hoffman, Inc.
    Inventors: Trent T. Jones, Scott D. Buell, Jeffrey A. Earles