Patent US4677799A successfully refreshed from Google Patents.
US4677799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-sectional raceway
Assignee: 3M Co
•
Filing: 1985-12-03
•
Granted: 1987-07-07
•
Expires: 2005-12-03
Abstract
Abstract A multi-sectional raceway is used in combination with a pair of interconnected panels of a detection system. The panels are attached to the ends of a pair of support beams, and electrical wiring runs between the panels. The raceway runs between the panels, and is comprised of two ramp sections and a platform section interlocked to provide ease of assembly and flexibility. The sections are flexibly interconnected by pressure engageable male members depending from the lower surface of the platform section at opposite ends with generally U-shaped female members located on the leg portions extending from the raised abutting end of each ramp section. The raceway also includes at least one generally E-shaped girder structure running underneath the entire width of the platform section to define at least one passageway for the protection of electrical wiring running therealong. In addition, the raceway includes at least two generally U-shaped channels running along the lower surface of the platform section to provide minimum clearance for the pair of beams running therethrough which interconnect and support the panels attached thereto. Thus, the forces associated with travel over the top of the raceway are isolated from the beams and the interconnected panels to prevent wobbling of the panels.
Inventors
- 👤 Peter J. Zarembo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:58
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/28; H02G3/283; H02G3/285
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
329 words
A multi-sectional raceway for use in combination with a pair of detection system panels, interconnected by at least one support beam, to protect electrical wires and the like passing between the panels and to permit travel between the panels without materially affecting the operation of the system, comprising: a generally rectangular central platform section having an upper surface, a lower surface, and a first end and a second end opposite said first end; a first ramp section and a second ramp section, each of said ramp sections having an upper surface, a lower surface, and a raised end adapted to abut with one of said first or second ends; interlocking means associated with said raised abutting ends of said ramp sections, and with said first end and said second end of said central platform section for lockingly interconnecting said ramp sections and said central platform section to form a continuous upper surface; and girder structure means running the width of said central platform section lower surface and having a substantially flat base for distributing loads applied thereto, and a plurality of arms extending from the base adapted to bear against and support a said platform section, at least one passageway being formed between said arms for permitting and protecting electrical wiring which may be positioned along said passageway to electrically connect the panels, wherein said support beams interconnecting said detection panels have a predetermined cross-sectional configuration, and wherein said platform section, ramp sections and girder means are further dimensioned relative to said predetermined configurations to form in combination when assembled together at least one channel running along the lower surface of the platform section and between the outer edge of the girder means and the raised end of the ramp sections, within which may be accommodated in a non-engaging relationship at least one said support beam thereby isolating load forces associated with said travel upon said raceway between said panels from said panels to prevent wobbling of said panels.
Claim 2
Dependent Claim
329 words
A multi-sectional raceway for use in combination with a pair of detection system panels, interconnected by at least one support beam, to protect electrical wires and the like passing between the panels and to permit travel between the panels without materially affecting the operation of the system, comprising: a generally rectangular central platform section having an upper surface, a lower surface, and a first end and a second end opposite said first end; a first ramp section and a second ramp section, each of said ramp sections having an upper surface, a lower surface, and a raised end adapted to abut with one of said first or second ends; interlocking means associated with said raised abutting ends of said ramp sections, and with said first end and said second end of said central platform section for lockingly interconnecting said ramp sections and said central platform section to form a continuous upper surface; and girder structure means running the width of said central platform section lower surface and having a substantially flat base for distributing loads applied thereto, and a plurality of arms extending from the base adapted to bear against and support a said platform section, at least one passageway being formed between said arms for permitting and protecting electrical wiring which may be positioned along said passageway to electrically connect the panels, wherein said support beams interconnecting said detection panels have a predetermined cross-sectional configuration, and wherein said platform section, ramp sections and girder means are further dimensioned relative to said predetermined configurations to form in combination when assembled together at least one channel running along the lower surface of the platform section and between the outer edge of the girder means and the raised end of the ramp sections, within which may be accommodated in a non-engaging relationship at least one said support beam thereby isolating load forces associated with said travel upon said raceway between said panels from said panels to prevent wobbling of said panels.
Claim 3
Dependent Claim
91 words
The multi-sectional raceway defined in claim 1, wherein said interlocking means includes a leg portion extending from each of said raised abutting ends of said ramp sections, said interlocking means also includes a male member depending from the lower surface of said first end and said second end of said central platform section, and each of said leg portions has a generally U-shaped female member opening towards said depending male member, whereby pressure engagement of each of said male members with each of said female members causes said sections to interlock.
Claim 4
Dependent Claim
41 words
The multi-sectional raceway defined in claim 2, wherein each male member includes a tooth and each female member includes a tooth, which come in pressure contact with one another to lock each of said female members and said male members together.
Claim 5
Dependent Claim
40 words
The multi-sectional raceway defined in claim 3, further comprising a bearing surface associated with said raised abutting ends of said ramp sections, and said first end and said second end of said central platform section to provide ease of assembly.
Claim 6
Dependent Claim
31 words
The multi-sectional raceway defined in claim 1, wherein said girder structure means is of generally E-shaped configuration and opens toward said central platform section lower surface to define two passageways therein.
Claim 7
Dependent Claim
31 words
The multi-sectional raceway defined in claim 1, wherein said first ramp section and said second ramp section include a plurality of rib members to reduce the overall weight of said raceway.
Claim 8
Dependent Claim
55 words
The multi-sectional raceway defined in claim 1, wherein said sections are adapted to include two channels, one of said channels running along said central platform section lower surface near said first end, and said other channel running along said central platform section lower surface near said second end to accommodate a pair of support beams.
Claim 9
Dependent Claim
320 words
A detection system, comprising: a pair of panels interconnected by at least one support beam having a predetermined cross-sectional configuration, and; a raceway running between the panels, and including a generally rectangular central platform section, a first ramp section, a second ramp section, means for interconnecting said ramp sections to said central platform sections and girder structure means; said generally rectangular central platform section having an upper surface, a lower surface, and a first end and a second end opposite said first end; said first ramp section and said second ramp section each having an upper surface, a lower surface, and a raised end which abuts one of said first or second ends; said interlocking means having members associated with said raised abutting ends of said ramp sections, and with said first end and said second end of said central platform section for lockingly interconnecting said ramp sections to said platform section to form a continuous upper surface; and said girder structure means running the width of said central platform section lower surface and having a substantially flat base for distributing loads applied thereto, and a plurality of arms extending from the base adapted to bear against and suppport a said platform section, at least one passageway being formed between said arms for permitting and protecting electrical wiring connecting the panels to be positioned therealong, said platform section, ramp sections and girder means being further dimensioned relative to said predetermined configurations of said at least one support beam to form in combination at least one channel running along the lower surface of the platform section and between the outer edge of the girder means and the raised end of the ramp sections, within which may be accommodated in a non-engaging relationship at least one said support beam thereby isolating load forces associated with said travel upon said raceway between said panels from said panels to prevent wobbling of said panels.
Claim 10
Dependent Claim
320 words
A detection system, comprising: a pair of panels interconnected by at least one support beam having a predetermined cross-sectional configuration, and; a raceway running between the panels, and including a generally rectangular central platform section, a first ramp section, a second ramp section, means for interconnecting said ramp sections to said central platform sections and girder structure means; said generally rectangular central platform section having an upper surface, a lower surface, and a first end and a second end opposite said first end; said first ramp section and said second ramp section each having an upper surface, a lower surface, and a raised end which abuts one of said first or second ends; said interlocking means having members associated with said raised abutting ends of said ramp sections, and with said first end and said second end of said central platform section for lockingly interconnecting said ramp sections to said platform section to form a continuous upper surface; and said girder structure means running the width of said central platform section lower surface and having a substantially flat base for distributing loads applied thereto, and a plurality of arms extending from the base adapted to bear against and suppport a said platform section, at least one passageway being formed between said arms for permitting and protecting electrical wiring connecting the panels to be positioned therealong, said platform section, ramp sections and girder means being further dimensioned relative to said predetermined configurations of said at least one support beam to form in combination at least one channel running along the lower surface of the platform section and between the outer edge of the girder means and the raised end of the ramp sections, within which may be accommodated in a non-engaging relationship at least one said support beam thereby isolating load forces associated with said travel upon said raceway between said panels from said panels to prevent wobbling of said panels.
Claim 11
Dependent Claim
91 words
The detection system defined in claim 8, wherein said interlocking means includes a leg portion extending from each of said raised abutting ends of said ramp sections, said interlocking means also includes a male member depending from the lower surface of said first end and said second end of said central platform section, and each of said leg portions has a generally U-shaped female member opening towards said depending male member, whereby pressure engagement of each of said male members with each of said female members causes said sections to interlock.
Claim 12
Dependent Claim
43 words
The detection system defined in claim 9, wherein each male member includes a tooth and each female member includes a tooth, which come in pressure contact with one another to lock each of said female members and each of said male members together.
Claim 13
Dependent Claim
40 words
The detection system defined in claim 10, further comprising a bearing surface associated with said raised abutting ends of said ramp sections, and said first end and said second end of said central platform section to provide ease of assembly.
Claim 14
Dependent Claim
31 words
The detection system defined in claim 8, wherein said girder structure means is of generally E-shaped configuration and opens toward said central platform section lower surface to define two passageways therein.
Claim 15
Dependent Claim
31 words
The detection system defined in claim 8, wherein said first ramp section and said second ramp section include a plurality of rib members to reduce the overall weight of said raceway.
Claim 16
Dependent Claim
55 words
The detection system defined in claim 8, wherein said sections are adapted to include two channels, one of said channels running along said central platform section lower surface near said first end, and said other channel running along said central platform section lower surface near said second end to accommodate a pair of support beams.
References Cited (Backward Citations)
US594465A
Cited
US1956125A
Cited
US72028A
Cited
US1838746A
Cited
US2299356A
Cited
GB550506A
Cited
US3182343A
Cited
US3423780A
Cited
US3971983A
Cited
US3846945A
Cited
US3984891A
Cited
US4101100A
Cited
NL7701096A
Cited
US4135183A
Cited
US4308530A
Cited
US4468910A
Cited
US4531117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-06 | 1991-01-05 | 1991-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-06 | 1995-01-05 | 1995-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-06 | 1999-01-05 | 1999-07-07 | $7700.00 | Window Closed / Lapsed |