IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0589856
(2009-10-29)
|
등록번호 |
US-8434802
(2013-05-07)
|
발명자
/ 주소 |
- Lofley, Sr., Robert G.
- Lofley, Jr., Robert G.
|
출원인 / 주소 |
|
대리인 / 주소 |
Frijouf, Rust & Pyle, P.A.
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
24 |
초록
▼
An extension tool is disclosed and comprises a first pole and a second pole. The second pole is slidably received within the first pole. The second pole has a plurality of apertures. A pin lever is pivotably mounted relative to the first pole. A pin slidably engages within the pin lever. The pin lev
An extension tool is disclosed and comprises a first pole and a second pole. The second pole is slidably received within the first pole. The second pole has a plurality of apertures. A pin lever is pivotably mounted relative to the first pole. A pin slidably engages within the pin lever. The pin lever is released for inserting the pin into the plurality of apertures of the second pole for terminating displacement of the first pole relative to the second pole. The pin lever is depressed for removing the pin from the plurality of apertures of the second pole for permitting displacement of the first pole relative to the second pole. A device, tool or support may be secured to the second ends of the second pole. In one embodiment, a claw is secured to the second end of the second pole for engaging either a knuckle coupler or a wheel brake of a railroad car.
대표청구항
▼
1. An extension tool for engaging a railroad car, the railroad car including a front side, a rear side, a left side and a right side, the front side and the rear side including a knuckle coupler for linking with a second railroad car, the front side and the rear side also including, a wheel brake fo
1. An extension tool for engaging a railroad car, the railroad car including a front side, a rear side, a left side and a right side, the front side and the rear side including a knuckle coupler for linking with a second railroad car, the front side and the rear side also including, a wheel brake for engaging a railroad brake, the extension tool, comprising: a first pole defining an interior bore, a first exterior surface and extending between a first end and a second end;a second pole defining a second exterior surface and extending between a first end and a second end;said first end of said second pole positioned within said second end of said first pole for positioning said second pole into said internal bore of said first pole;said second pole having a plurality of apertures defined in said second pole;a pin lever pivotal mounted relative to said exterior surface of said first pole;a pin slidably engaging within said pin lever between a retracted position and a protruded position;said pin lever released for positioning said pin into said protruded position and inserting said pin into said plurality of apertures of said second pole for terminating displacement of said first pole relative to said second pole;said pin lever depressed for positioning said pin into said retracted position and removing said pin from said plurality of apertures of said second pole for permitting displacement of said first pole relative to said second pole;said pin lever includes a spring for biasing said pin into said protruded position;a claw securing to said second end of said second pole for engaging either the knuckle coupler or the wheel brake of the railroad car;a first pin column and a second pin column positioned on opposing sides of the pin lever;a bridge member extending and coupled to said first pin column and said second pin column; andsaid bridge member having a bridge bore for receiving said pin. 2. An extension tool for engaging a railroad car as set forth in claim 1, wherein said first pole includes a guide pin extending within said internal bore of said first pole,said second exterior surface of said second pole having a guide groove; andsaid guide pin engaging said guide groove for preventing rotation of said second pole relative to said first pole during said pin in said retracted position. 3. An extension tool for engaging a railroad car as set forth in claim 1, wherein said first pole include a stop pin traversing said internal bore of said first pole for engaging said first end of said second pole. 4. An extension tool for engaging a railroad car as set forth in claim 1, wherein said pin lever includes a pin plate and a handle plate coupled by an angled portion; said pin plating includes a pin bore for receiving said pin;said handle plate is substantially longer than said pin plate;said angled portion and said substantially longer handle plate relative to said pin plate defining a mechanical advantage tool; andsaid mechanical advantage tool applying a mechanical advantage force against said pin spring upon a force being applied to said handle plate. 5. An extension tool, comprising: a first pole defining an interior bore and a first exterior surface with said first pole extending between a first end and a second end;a second pole defining a second exterior surface with said second pole extending between a first end and a second end;a third pole defining an interior bore and a third exterior surface with said third pole extending between a first end and a second end;said first end of said second pole positioned within said second end of said first pole for positioning said second pole into said internal bore of said first pole;said first end of said first pole positioned within said second end of said third pole for positioning said first pole into said internal bore of said third pole;said second pole having a plurality of apertures defined in said second pole;a first pin fastener removably mounted relative to the said first pole for inserting into said plurality of apertures of said second pole for terminating displacement of said first pole relative to said second pole;said first pole having a plurality of apertures defined in said first pole;a second pin lever pivotably mounted relative to said exterior surface of said third pole;a second pin slidably engaging within said second pin lever between a retracted position and a protruded position;said second pin lever released for positioning said second pin into said protruded position and inserting said second pin into said plurality of apertures of said first pole for terminating displacement of said third pole relative to said first pole;said second pin lever depressed for positioning said second pin into said retracted position and removing said second pin from said plurality of apertures of said first pole for permitting displacement of said third pole relative to said first pole;a first pin column and a second pin column positioned on opposing sides of the second pin lever;a bridge member extending and coupled to said first pin column and said second pin column; andsaid bridoe member having a bridge bore for receivino said second pin. 6. An extension tool as set forth in claim 5, further including a first bushing defining an internal bore, an exterior surface and extending between a first end and a second end; a second bushing defining an internal bore, an exterior surface and extending between a first end and a second end;a third bushing defining an internal bore,an exterior surface and extending between a first end and a second end,a fourth bushing defining an internal bore, an exterior surface and extending between a first end and a second end;said first bushing securing within said internal bore said first pole;said second bushing securing over said exterior surface of said second pole;said third bushing securing within said internal bore of said third pole;said fourth bushing securing over said exterior surface of said first pole;said second pole slidably engaging within said internal bore of said first bushing for telescoping said second pole relative to said first pole;said second bushing slidably engaging within said internal bore of said first pole for telescoping said second pole relative to said first pole;said first pole slidably engaging within said internal bore of said third bushing for telescoping said third pole relative to said first pole; andsaid fourth bushing slidably engaging within said internal bore of said third pole for telescoping said third pole relative to said first pole. 7. An extension tool as set forth in claim 5, further including a first bushing defining an internal bore, an exterior surface and extending between a first end and a second end; a second bushing defining an internal bore, an exterior surface and extending between a first end and a second end;a third bushing defining an internal bore, an exterior surface and extending between a first end and a second end;a fourth bushing defining an internal bore, an exterior surface and extending between a first end and a second end;said first bushing securing within said internal bore of said first pole;said second bushing securing over said exterior surface of said second pole;said third bushing securing within said internal bore of said third pole;said fourth bushing securing over said exterior surface of said first pole;said second pole slidably engaging within said internal bore of said first bushing for telescoping said second pole relative to said first pole;said second bushing slidably engaging within said internal bore of said first pole for telescoping said second pole relative to said first pole;said first pole slidably engaging within said internal bore of said third bushing for telescoping said third pole relative to said first pole;said fourth bushing slidably engaging within said internal bore of said third pole for telescoping said third pole relative to said first pole;an first upper telescoping stop comprising said first bushing cooperating with said second bushing to limit an outward movement of said second pole relative to said first pole upon engagement of said first bushing with said second bushing;a second upper telescoping stop comprising said third bushing cooperating with said fourth bushing to limit an outward movement of said first pole relative to said third pole upon engagement of said third bushing with said fourth bushing. 8. An extension tool as set forth in claim 5, further including a first bushing defining an internal bore, an exterior surface and extending between a first end and a second end; a second bushing defining an internal bore, an exterior surface and extending between a first end and a second end;a third bushing defining an internal bore, an exterior surface and extending between a first end and a second end;a fourth bushing defining an internal bore, an exterior surface and extending between a first end and a second end;said first bushing securing within said internal bore of said first pole;said second bushing seeming over said exterior surface of said second pole;said third bushing securing within said internal bore of said third pole;said fourth bushing securing over said exterior surface of said first pole;said second pole slidably engaging within said internal bore of said first bushing for telescoping said second pole relative to said first pole;said second bushing slidably engaging within said internal bore of said first pole for telescoping said second pole relative to said first pole;said first pole slidably engaging within said internal bore of said third bushing for telescoping said third pole relative to said first pole;said fourth bushing slidably engaging within said internal bore of said third pole for telescoping said third pole relative to said first pole;said first, second and third poles are formed of a metallic material; andsaid first, second, third and fourth bushing are formed of a polymeric material for creating a metallic to polymeric sliding engagement between the said first and second poles and the third and first poles. 9. An extension tool as set forth in claim 5, further including a first bushing defining an internal bore, an exterior surface and extending between a first end and a second end; a second bushing defining an internal bore, an exterior surface and extending between a first end and a second end;a third bushing defining an internal bore, an exterior surface and extending between a first end and a second end;a fourth bushing defining an internal bore, an exterior surface and extending between a first end and a second end;said first bushing securing within said internal bore of said first pole;said second bushing se wing over said exterior surface of said second pole;said third bushing securing within said internal bore of said third pole;said fourth bushing securing over said exterior surface of said first pole;said second pole slidably engaging within said internal bore of said first bushing for telescoping said second pole relative to said first pole;said second bushing slidably engaging within said internal bore of said first pole for telescoping said second pole relative to said first pole;said first pole slidably engaging within said internal bore of said third bushing for telescoping said third pole relative to said first pole;said fourth bushing slidably engaging within said internal bore of said third pole for telescoping said third pole relative to said first pole;said interior bore of said first pole includes a first counterbore for receiving said first bushing; andsaid interior bore of said third pole includes a second counterbore fore receiving said third bushing. 10. An extension tool as set forth in claim 5, further including a first collar secured to second end of said first pole having a first pin aperture; said first pin slidably engaging, within said first collar between a retracted position and a protruded position;a first spring for biasing said first pin into said protruded position for extending into a selected one of said plurality of apertures of said second pole for fixing the position of said second pole relative to said first pole;said first pin lever mounted to said first collar for moving said first pin into said retracted position for permitting displacement of said first pole relative to said second pole;a second collar secured to second end of said third pole having a second pin aperture;said second pin slidably engaging within said second collar between a retracted position and a protruded position;a second spring for biasing said second pin into said protruded position for extending into a selected one of said plurality of apertures of said first pole for fixing the position of said first pole relative to said third pole; andsaid second pin lever mounted to said second collar for moving said second pin into said retracted position for permitting displacement of said third pole relative to said first pole. 11. An extension tool as set forth in claim 5, further including a first collar secured to second end of said first pole having a first pin aperture, said first pin slidably engaging within said first collar between a retracted position and a protruded position;a first spring for biasing said first pin into said protruded position for extending into a selected one of said plurality of apertures of said second pole for fixing the position of said second pole relative to said first pole;said first pin lever mounted to said first collar for moving said first pin into said retracted position for permitting displacement of said first pole relative to said second pole;a second collar secured to second end of said third pole having a second pin aperture;said second pin slidably engaging within said second collar between a retracted position and a protruded position;a second spring for biasing said second pin into said protruded position for extending into a selected one of said plurality of apertures of said first pole for fixing the position of said first pole relative to said third pole;said second pin lever mounted to said second collar for moving said second pin into said retracted position for permitting displacement of said third pole relative to said first pole;said interior bore of said first pole has a substantially circular cross-section;said exterior surface of said second pole having a substantially circular cross-section with a first chord defining a flatten portion of said substantially circular cross-section;a first anti-rotation insert extending from said first collar into said interior bore of said first pole and positioning adjacent to said first chord for inhibiting rotation between said second pole relative to said first pole;said interior bore of said third pole has a substantially circular cross-section;said exterior surface of said first pole having a substantially circular cross-section with a second chord defining a flatten portion of said substantially circular cross-section; anda second anti-rotation insert extending from said second collar into said interior bore of said third pole and positioning adjacent to said second chord for inhibiting rotation between said first pole relative to said third pole. 12. extension tool as set forth in claim 5, further including a first collar secured to second end of said first pole having a first pin aperture; said first pin slidably engaging within said first collar between a retracted position and a protruded position;a first spring for biasing said first pin into said protruded position for extending into a selected one of said plurality of apertures of said second pole for fixing the position of said second pole relative to said first pole;said first pin lever mounted to said first collar for moving said first pin into said retracted position for permitting displacement of said first pole relative to said second pole;a second collar secured to second end of said third pole having a second pin aperture;said second pin slidably engaging within said second collar between a retracted position and a protruded position;a second spring for biasing said second pin into said protruded position for extending into a selected one of said plurality of apertures of said first pole for fixing the position of said first pole relative to said third pole;said second pin lever mounted to said second collar for moving said second pin into said retracted position for permitting displacement of said third pole relative to said first pole;said interior bore of said first pole has a substantially circular cross-section;said exterior surface of said second pole having a substantially circular cross-section with a first chord defining a flatten portion of said substantially circular cross-section;a first ant-rotation insert extending from said first collar into said interior bore of said first pole and positioning adjacent to said first chord for inhibiting rotation between said second pole relative to said first pole;said interior bore of said third pole has a substantially circular cross-section;said exterior surface of said first pole having a substantially circular cross-section with a second chord defining a flatten portion of said substantially circular cross-section;a second anti-rotation insert extending from said second collar into said interior bore of said third pole and positioning adjacent to said second chord for inhibiting rotation between said first pole relative to said third pole;said first anti-rotation insert extending from said first collar into said interior bore of said first pole for defining, a first collar lock for securing said first collar to said first pole; andsaid second anti-rotation insert extending from said second collar into said interior bore of said third pole for defining a second collar lock for securing said second collar to said third pole. 13. An extension tool as set forth in claim 5, further including a first collar secured to second end of said first pole having a first pin aperture; said first pin slidably engaging within said first collar between a retracted position and a protruded position;a first spring for biasing said first pin into said protruded position for extending into a selected one of said plurality of apertures of said second pole for fixing the position of said second pole relative to said first pole;said first pin lever mounted to said first collar for moving said first pin into said retracted position for permitting displacement of said first pole relative to said second pole;a second collar secured to second end of said third pole having a second pin aperture;said second pin slidably engaging within said second collar between a retracted position and a protruded position;a second spring, for biasing said second pin into said protruded position for extending into a selected one of said plurality of apertures of said first pole for fixing the position of said first pole relative to said third pole;said second pin lever mounted to said second collar for moving said second pin into said retracted position for permitting displacement of said third pole relative to said first pole;said interior bore of said first pole has a substantially circular cross-section;said exterior surface of said second pole having a substantially ally circ cross-section with a first chord defining a flatten portion of said substantially circular cross-section;a first anti-rotation insert extending from said first collar into said interior bore of said first pole and positioning adjacent to said first chord for inhibiting rotation between said second pole relative to said first pole;said interior bore of said third pole has a substantially circular cross-section;said exterior surface of said first pole having a substantially circular cross-section with a second chord defining a flatten portion of said substantially circular cross-section;a second anti-rotation insert extending from said second collar into said interior bore of said third pole and positioning adjacent to said second chord for inhibiting rotation between said first pole relative to said third pole;said first anti-rotation insert extending from said first collar into said interior bore of said first pole for defining a first bushing lock for securing said first bushing to said first pole; andsaid second anti-rotation insert extending from said second collar into said interior bore of said third pole for defining a second bushing lock for securing said third bushing to said third pole. 14. An extension tool comprising: a first pole defining an interior bore with said first pole extending between a first end and a second end;a second pole extending between a first end and a second end;said first end of said second pole located within said first pole for positioning said second pole into said internal bore of said first pole;said second pole having a plurality of apertures defined in said second pole;a pin lever moving a pin between a retracted position and a protruded position;said pin lever released for positioning said pin into said protruded position for inserting said pin into one of said plurality of apertures of said second pole for inhibiting displacement of said first pole relative to said second pole;said pin lever depressed for positioning said pin into said retracted position for removing said pin from said plurality of apertures of said second pole for permitting displacement of said first pole relative to said second pole;a first column and a second pin column positioned on opposing sides of the pin lever;a bridge member extending and coupled to said first in column and said second in column; andsaid bridge member having a bridge bore for receiving said pin. 15. An extension tool as set forth in claim 14, including an illuminator affixed to one of said first and second poles for illuminating in proximity to said second pole; and a clamp for securing said illuminator to one of said first and second poles. 16. An extension tool as set forth in claim 14, including a holder for securing said illuminator to one of said first and second poles. 17. An extension tool as set forth in claim 14, including a first bushing defining an internal bore and an exterior surface; a second bushing defining an internal bore and an exterior surface;said internal bore of said first bushing slidablv engaging with said exterior surface of said second pole and with said exterior surface of said second bushing slidably engaging with said internal bore of said first pole for enabling said second pole to be slidably displaced relative to said first pole; andan upper telescoping stop comprising said first bushing cooperating with said second bushing to limit an outward movement of said second pole relative to said first pole upon engagement of said first bushing with said second bushing.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.