# US 2008/0184560 A1 · Method for producing movable contact parts with flat pins and contact parts made using this method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0184560 A1 - Document ID: US20080184560A1 - Status: Published application - Kind: A1 - Application number: 12/026,369 - Filed: 2008-02-05 - Published: 2008-08-07 - Earliest claimed: 2007-02-05 - Assignees: Morsettitalia S.p.A. - Inventors: Giordano Pizzi - Web page: https://patentgrep.com/patent/US20080184560A1 ## CPC - H01H 69/02: Manufacture of fuses - H01H 85/202: {for fuses with ferrule type end contacts} - H01H 85/56: the intermediate or auxiliary part having side contacts for plugging into the base, e.g. bridge-carrier type - H01H 85/2045: {Mounting means or insulating parts of the base, e.g. covers, casings} - H01H 85/22: Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing the fuse - H01H 85/32: Indicating lamp structurally associated with the protective device - H01H 85/545: {with pivoting fuse carrier (tumbler switch with built-in fuse H01H23/10)} - H01H 85/547: {with sliding fuse carrier} - Y10T 29/49204: Contact or terminal manufacturing - Y10T 29/49208: by assembling plural parts - Y10T 29/49218: with deforming - Y10T 29/4922: with molding of insulation - Y10T 29/49222: forming array of contacts or terminals - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A method for producing electric contact parts includes the following stages: a) stamping a strip of electric conducting parts connected together in the longitudinal direction (X-X) by a continuous strip; b) inserting said strip inside a mould; c) over-moulding the conducting parts with insulating material depending on the final form envisaged for the electric contact part; d) cutting the continuous strip in the region of the flat pins; e) extracting the finished parts. ## Claims ### Claim 1 A method for producing electric contact parts which can be inserted into and removed from terminal blocks for connecting electric wires, the method comprising: a) stamping a strip of electrically conducting parts, each part including at least one flat pin, the strip of electrically conducting parts being connected together in a longitudinal direction by a continuous strip; b) inserting the strip of electrically conducting parts inside a mould; c) over-moulding at least a portion of the conducting parts with insulating material whereby at least a portion of the flat pins remain exposed; d) cutting the continuous strip in the region of the flat pins; e) extracting the finished parts. ### Claim 2 (depends on 1) A method according to claim 1, wherein the continuous strip is made of the same material as the flat pins. ### Claim 3 (depends on 1) A method according to claim 1, wherein the insulating material is moulded symmetrically with respect to the conducting pins in a transverse direction. ### Claim 4 (depends on 1) A method according to claim 1, wherein stamping of the electrically conducting parts includes cold-stamping. ### Claim 5 (depends on 1) A method according to claim 1, wherein over-moulding includes injection moulding. ### Claim 6 (depends on 1) A method according to claim 1, wherein at least one contact part includes a case adapted for holding a glass fuse and flat pins projecting from the case. ### Claim 7 (depends on 6) A method according to claim 6, wherein the strip of electrically conducting parts includes a series of separate conducting parts, each conducting part including a flat pin and a substantially C-shaped head. ### Claim 8 (depends on 7) A method according to claim 7, wherein the C-shaped head includes at least one tongue extending in a transverse direction and forming a seat adapted to make contact with an end of a fuse. ### Claim 9 (depends on 7) A method according to claim 7, wherein the contacting parts include at least two conducting parts arranged symmetrically opposite each other at a relative distance equal to a length of the fuse in a longitudinal direction. ### Claim 10 (depends on 6) A method according to claim 6, wherein the case includes a top part which is substantially in the form of a parallelepiped extending with its greater side in a longitudinal direction; and a bottom part integral with the top part and extending over a portion of the electrically conducting parts, at least partially covering the flat pins. ### Claim 11 (depends on 10) A method according to claim 10, wherein the case includes: a seat is formed inside the top part, the seat including the C-shaped heads oppositely arranged in the seat forming a seat and contact for the glass fuse. ### Claim 12 (depends on 10) A method according to claim 10, wherein the bottom part is formed of a shape suitable for insertion in a corresponding seat of a terminal block for connecting electric wires. ### Claim 13 (depends on 10) A method according to claim 10, wherein the top part includes a cavity which passes through the top part in a vertical direction. ### Claim 14 (depends on 13) A method according to claim 13, wherein the cavity is adapted to contain a light indicator element. ### Claim 15 (depends on 14) A method according to claim 14, wherein the light indicator element is formed in the cover. ### Claim 16 (depends on 14) A method according to claim 14, wherein the light indicator element is separate from the cover. ### Claim 17 (depends on 1) A method according to claim 1, wherein the case has a cover that can be opened and closed. ### Claim 18 (depends on 17) A method according to claim 17, wherein the cover includes pins extending in a transverse direction and adapted to engage respective seats in the top part of the case. ### Claim 19 (depends on 17) A method according to claim 17, wherein the cover includes support elements extending in a transverse direction and adapted for retaining the fuse. ### Claim 20 (depends on 17) A method according to claim 17, wherein the cover includes an opening for inspecting the fuse. ### Claim 21 (depends on 17) A method according to claim 17, wherein the cover includes a tapered or flared lip along a free edge to facilitating opening. ### Claim 22 (depends on 17) A method according to claim 17, wherein the case includes a seat, arranged on an outer front side, adapted to receive an information label. ### Claim 23 (depends on 1) A method according to claim 1, wherein the case is adapted to be inserted in a wire connecting terminal block by rotation. ### Claim 24 (depends on 23) A method according to claim 23, wherein the conducting parts include oppositely arranged C-shaped heads and flat pins arranged asymmetrically with respect to a vertical axis of symmetry. ### Claim 25 (depends on 24) A method according to claim 24, wherein the case includes a pin projecting from both the sides of the case in a transverse direction and is adapted for insertion in corresponding seats of a wire connecting terminal block. ### Claim 26 (depends on 1) A method according to claim 1, wherein the electric contact part is an isolator. ### Claim 27 (depends on 26) A method according to claim 26, wherein the strip of the electric conducting parts includes flat pins. ### Claim 28 (depends on 26) A method according to claim 26, wherein the isolator is adapted to be inserted in a wire connecting terminal block by rotation. ### Claim 29 (depends on 26) A method according to claim 26, wherein the isolator is adapted to be inserted in a seat of a terminal block by displacement. ### Claim 30 (depends on 26) A method according to claim 26, wherein the isolator includes an over-moulded head having a transverse pin adapted for insertion in a seat of a terminal block by rotation. ### Claim 31 (depends on 30) A method according to claim 30, wherein the head includes a gripping part adapted for applying a pushing or pulling force to insert or remove the electrical contact part into or from a terminal block. ### Claim 32 (depends on 31) A method according to claim 31, wherein the gripping part is adapted to be inserted inside a seat of the terminal block.