# US 2001/0024366 A1 · Knife with illumination device and tape measure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2001/0024366 A1 - Document ID: US20010024366A1 - Status: Published application - Kind: A1 - Application number: 09/867,050 - Filed: 2001-05-29 - Published: 2001-09-27 - Earliest claimed: 2000-01-10 - Inventors: Martin Chen - Web page: https://patentgrep.com/patent/US20010024366A1 ## CPC - F21V 33/0048: {Office articles, e.g. bookmarks, desk lamps with drawers, stands for books or music scores} - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR ## Abstract A knife includes a casing including an arcuate end to form a handle of pistol grip type for grasp and a blade mounted in the casing. The blade is slidable relative to the casing to a position in which an end of the blade is exposed for cutting. The handle of the casing includes a compartment for receiving a tape measure. An illumination device is detachably attached to the casing to provide illumination when required. ## Claims ### Claim 1 A knife comprising: a casing including an arcuate end to form a handle of pistol grip type for grasp; and a blade mounted in the casing, the blade being slidable relative to the casing to a position in which an end of the blade is exposed for cutting. ### Claim 2 (depends on 1) The knife as claimed in claim 1, wherein the handle of the casing includes a compartment for receiving a tape measure. ### Claim 3 (depends on 2) The knife as claimed in claim 2, wherein the casing comprises a notch defined in a side thereof that faces away from the blade, the tape measure comprising a housing and a flexible rule, the flexible rule being coiled in the housing and extending through the notch ### Claim 4 (depends on 1) The knife as claimed in claim 1, further comprising an illumination device detachably attached to the casing. ### Claim 5 (depends on 1) The knife as claimed in claim 1, wherein the casing includes two casing halves. ### Claim 6 (depends on 5) The knife as claimed in claim 5, wherein one of the casing halves includes a compartment for receiving a tape measure comprising a housing and a flexible rule coiled in the housing and having an end hook, said one of the casing halves including a notch through which the end hook is extended beyond the casing, the end hook being prevented from entering the casing after the casing halves are assembled. ### Claim 7 (depends on 6) The knife as claimed in claim 6, wherein the notch is defined in a side of said one of the casing halves that faces away from the blade. ### Claim 8 (depends on 5) The knife as claimed in claim 5, further comprising an illumination device detachably attached to the casing. ### Claim 9 (depends on 8) The knife as claimed in claim 8, wherein at least one of the casing halves includes a rail, and wherein the illumination device includes means for slidably engaging with the rail. ### Claim 10 (depends on 8) The knife as claimed in claim 8, wherein the handle includes a recessed portion and wherein the illumination device includes an end sized to complimentarily engage with the recessed portion. ### Claim 11 (depends on 9) The knife as claimed in claim 9, wherein the handle includes a recessed portion and wherein the illumination device includes an end sized to complimentarily engage with the recessed portion. ### Claim 12 A knife comprising: a casing including two casing halves, each said casing half having a substantially L-shape rail formed on an underside thereof; a blade mounted in the casing, the blade being slidable relative to the casing to a position in which an end of the blade is exposed for cutting; and an illumination device including a substantially U-shape outer wall having an intermediate portion, two T-shape beams being projected from the intermediate section of the outer U-shape wall, thereby defining two outer chambers and an inner chamber, each said T-shape beam including an inner shoulder section located in the inner chamber and an outer shoulder section located in an associated said outer chamber, an illumination means being mounted in the inner chamber, a slide lid being slidably mounted in the inner chamber to retain the illumination device in place, the slide lid being is in sliding contact with the inner shoulder sections of the T-shape beams, and each said rail of the casing being in sliding contact with the outer shoulder section of an associated said T-shape beam. ### Claim 13 (depends on 12) The knife as claimed in claim 12, wherein each said casing half includes an arcuate end to form a handle for grasp. ### Claim 14 (depends on 13) The knife as claimed in claim 13, wherein the arcuate end of one of the casing halves includes a compartment therein for receiving a tape measure. ### Claim 15 A knife comprising: a casing including two casing halves, one of the casing halves including a plurality of positioning recesses, at least one of the casing halves defining an elongate slot, each said casing half having a substantially L-shape rail formed on an underside thereof; a blade kit mounted in the casing, the blade kit including a blade, a blade holder for holding the blade, and a thumb piece extended beyond the casing for manual operation along the elongate slot, thereby moving the blade relative to the casing, the thumb piece including a positioning member and an engaging stem extended from the positioning member, the positioning member including a protrusion for releasably engaging with one of the positioning recesses of the casing, the blade holder including a fixing seat to which the engaging stem is slidably engaged such that the thumb piece is slidable in a vertical direction relative to the fixing seat to thereby allow the protrusion to be disengaged from the positioning recesses when the thumb piece is pushed, an elastic element being mounted around the engaging stem for biasing the protrusion to engage with said one of the positioning recesses of the casing; and an illumination device including a substantially U-shape outer wall having an intermediate portion, two T-shape beams being projected from the intermediate section of the outer U-shape wall, thereby defining two outer chambers and an inner chamber, each said T-shape beam including an inner shoulder section located in the inner chamber and an outer shoulder section located in an associated said outer chamber, an illumination means being mounted in the inner chamber, a slide lid being slidably mounted in the inner chamber to retain the illumination device in place, the slide lid being is in sliding contact with the inner shoulder sections of the T-shape beams, and each said rail of the casing being in sliding contact with the outer shoulder section of an associated said T-shape beam. ### Claim 16 (depends on 15) The knife as claimed in claim 15, wherein each said casing half includes an arcuate end to form a handle for grasp. ### Claim 17 (depends on 16) The knife as claimed in claim 16, wherein the handle is of pistol grip type. ### Claim 18 (depends on 16) The knife as claimed in claim 16, wherein the arcuate end of one of the casing halves includes a compartment therein for receiving a tape measure. ### Claim 19 (depends on 18) The knife as claimed in claim 18, wherein the tape measure comprises a housing and a flexible rule coiled in the housing and having an end hook, said one of the casing halves including a notch through which the end hook is extended beyond the casing, the end hook being prevented from entering the casing after the casing halves are assembled. ### Claim 20 (depends on 15) The knife as claimed in claim 15, wherein the blade has two recesses and the blade holder includes an engaging piece for releasably engaging with one of the recesses of the knife, and wherein an end of the knife is usable when the engaging piece engages with one of the recesses of the knife, and the other end of the knife is usable when the engaging piece engages with the other recess of the knife.