Patent US4007474A successfully refreshed from Google Patents.
US5228734A
Expired / Lapsed
US
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Expandable snow shovel device
Assignee: Individual
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Filing: 1992-07-20
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Granted: 1993-07-20
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Expires: 2012-07-20
Abstract
Abstract There is disclosed an expandable snow shovel device having a central blade element which has a single handle projecting upwardly from its upper edge. There is also at least one side blade element which abuts the central blade element end to end. Additionally, other side blade elements may be releasably fixed outwardly from the side blade adjacent to the central blade. Preferably, the blade elements also have upwardly extending flanges adjacent to their lateral edges so that they may be fixed to adjoining blade elements by releasable connecting members such as lock pins. Preferably, the blade elements are also concave in shape as viewed from their upper surface and terminate at their lower ends in an angled cutting edge.
Inventors
- 👤 Paul J. Pollastro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:13
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/02
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
206 words
A shovel device comprising: (a) a central blade element having a top and a bottom surface, upper and lower edges and first and second generally parallel lateral edges and adjacent the first lateral edge there is a flange running generally parallel to said first lateral edge and projecting from the top surface; (b) a handle element projecting upwardly from the upper edge of the blade element; and (c) a side blade element itself having a top and a bottom surface, upper and lower edges and first and second generally parallel lateral edges and adjacent the first lateral edge of the first side blade element there is a flange running generally parallel to the first lateral edge of the first side blade element and projecting from the top surface of said first side blade element such that said flange and the flange adjacent the first lateral edge of the central blade element are positioned in abutting side by side relation and means are attached to said flanges for releasably connecting said flanges, wherein the first lateral edge of the side blade element abuts the first lateral edge of the central blade element such that the said blade element is releasably connected end-to-end to the central blade element.
Claim 2
Dependent Claim
206 words
A shovel device comprising: (a) a central blade element having a top and a bottom surface, upper and lower edges and first and second generally parallel lateral edges and adjacent the first lateral edge there is a flange running generally parallel to said first lateral edge and projecting from the top surface; (b) a handle element projecting upwardly from the upper edge of the blade element; and (c) a side blade element itself having a top and a bottom surface, upper and lower edges and first and second generally parallel lateral edges and adjacent the first lateral edge of the first side blade element there is a flange running generally parallel to the first lateral edge of the first side blade element and projecting from the top surface of said first side blade element such that said flange and the flange adjacent the first lateral edge of the central blade element are positioned in abutting side by side relation and means are attached to said flanges for releasably connecting said flanges, wherein the first lateral edge of the side blade element abuts the first lateral edge of the central blade element such that the said blade element is releasably connected end-to-end to the central blade element.
Claim 3
Dependent Claim
79 words
The shovel device recited in claim 1 wherein there is a second side blade element having a top and a bottom surface, upper and lower edges and first and second parallel lateral edges, wherein the first lateral edge of said second side blade element abuts the second lateral edge of the central blade element such that said second side blade element is releasably connected end-to-end to the central blade element in opposed relation to the first side blade element.
Claim 4
Dependent Claim
72 words
The shovel device recited in claim 2 wherein there is a third side blade element having a top and a bottom surface, upper and lower edges and first and second parallel lateral edges, wherein the first lateral edge of said third side blade element abuts the second lateral edge of the first side blade element such that said third side blade element is releasably connected end-to-end to the first side blade element.
Claim 5
Dependent Claim
72 words
The shovel device recited in claim 3 wherein there is a fourth side blade element having a top and a bottom surface, upper and lower edges and first and second parallel lateral edges, wherein the first lateral edge of said fourth side blade element abuts the second lateral edge of the second side blade element such that said fourth side blade element is releasably connected end-to-end to the second side blade element.
Claim 6
Dependent Claim
104 words
The shovel device recited in claim 4 wherein adjacent the second lateral edge of the second side blade element there is a flange running generally parallel to said second lateral edge and projecting upwardly from the top surface and wherein there is adjacent the first lateral edge of the fourth side blade element a flange running generally parallel to the first lateral edge of the fourth side blade element and such that said flanges are positioned in abutting side by side relation and wherein means for removably connecting the second side blade element to the fourth side blade element are fixed to said flanges.
Claim 7
Dependent Claim
104 words
The shovel device recited in claim 5 wherein there is a pair of spaced apertures through the flange projecting from the central blade element and a pair of spaced apertures in the flange projecting from the second side blade element wherein each of said apertures in the flange projecting from the second side blade element is longitudinally aligned with one of the apertures in the flange projecting from the fourth blade element and wherein pins having opposed terminal ends and having locking means on at least one of their terminal ends extend through the aligned apertures to allow said flanges to be releasably connected.
Claim 8
Dependent Claim
53 words
The shovel device recited in claim 4 wherein the central blade element and the third side blade element and fourth side blade element are similarly concave viewed from the top surfaces and have aligned top and bottom surfaces and upper and lower ends wherein said lower ends are formed into a scraping edge.
Claim 9
Dependent Claim
102 words
The shovel device recited in claim 3 wherein adjacent the second lateral edge of the first side blade element there is a flange running generally parallel to said second lateral edge and projecting upwardly from the top surface and wherein there is adjacent the first lateral edge of the third side blade element a flange running generally parallel to the first lateral edge of the third side blade element and such that said flanges are positioned in abutting side by side relation and wherein means for removably connecting the first side blade element to the third side blade element abut said flanges.
Claim 10
Dependent Claim
104 words
The shovel device recited in claim 8 wherein there is a pair of spaced apertures through the flange projecting from the central blade element and a pair of spaced apertures in the flange projecting from the first side blade element wherein each of said apertures in the flange projecting from the first side blade element is longitudinally aligned with one of the apertures in the flange projecting from the central blade element and wherein pins having opposed terminal ends and having locking means on at least one of their terminal ends extend through the aligned apertures to allow said flanges to be releasably connected.
Claim 11
Dependent Claim
100 words
The shovel device recited in claim 2 wherein adjacent the second lateral edge of the central blade element there is a flange running generally parallel to said second lateral edge and projecting upwardly from the top surface and wherein there is adjacent the first lateral edge of the second side blade element a flange running generally parallel to the first lateral edge of the second side blade element and such that said flanges re positioned in abutting side by side relation and wherein means for removably connecting the central blade element to the second side blade element abut said flanges.
Claim 12
Dependent Claim
104 words
The shovel device recited in claim 10 wherein there is a pair of spaced apertures through the flange projecting from the central blade element and a pair of spaced apertures in the flange protecting from the second side blade element wherein each of said apertures in the flange projecting from the second side blade element is longitudinally aligned with one of the apertures in the flange projecting from the central blade element and wherein pins having opposed terminal ends and having locking means on at least one of their terminal ends extend through the aligned apertures to allow said flanges to be releasably connected.
Claim 13
Dependent Claim
54 words
The shovel device recited in claim 2 wherein the central blade element and the first side blade element and the second side blade element are similarly concave viewed from the top surfaces and have aligned top and bottom surfaces and upper and lower ends wherein said lower ends are formed into a scraping edge.
Claim 14
Dependent Claim
32 words
The shovel device recited in claim 2 wherein the central blade element is about 6-12 inches in width and the first and second side blade elements are about 6-12 inches in width.
Claim 15
Dependent Claim
46 words
The shovel device recited in claim 13 wherein the central blade element is about 6-12 inches in width and the first and second side blade elements are about 6-12 inches in width and the third and fourth side blades which are about 6-12 inches in width.
Claim 16
Dependent Claim
26 words
The shovel device recited in claim 13 wherein the central and side blade elements are constructed of plastic of about 1/16 to 3/16 inch in thickness.
Claim 17
Dependent Claim
27 words
The shovel device recited in claim 13 wherein the central and side blade elements are constructed of sheet metal of about 1/16 to 3/16 inch in thickness.
Claim 18
Dependent Claim
103 words
The shovel device recited in claim 1 wherein there is a pair of spaced apertures through the flange projecting from the central blade element and a pair of spaced apertures in the flange projecting from the first side blade element wherein each of said apertures in the flange projecting from the first side blade is longitudinally aligned with one of the apertures in the flange projecting from the central blade element and wherein pins having opposed terminal ends and having locking means on at least one of their terminal ends extend through the aligned apertures to allow said flanges to be releasably connected.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-19 | 1997-01-18 | 1997-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-19 | 2001-01-18 | 2001-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-19 | 2005-01-18 | 2005-07-20 | $7700.00 | Window Closed / Lapsed |