Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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US Patent 5553358 - Band clamp fitting
US Patent Issued on September 10, 1996
Estimated Patent Expiration Date:
May 11, 2014Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
May 11, 2014Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA clamp fitting is formed by a metal band wound on itself. One end of the band presents an ear radially projecting on the outer periphery of the clamp. The other end of the band is shaped as a hook capable of hooking behind the ear to maintain the clamp in a tightened position. After hooking, on the face of the metal band located opposite the hook bearing zone, the ear is provided with a member integral therewith and of which a zone is capable of coming into stop contact with the inner face of the hook when the latter is being hooked on the ear. This additional contact with the inner face of the hook prevents any relative displacement of the hook with respect to the ear and consequently any increase in the tightening of the clamp. | InventorsApplicationNo. 241611 filed on 05/11/1994US Classes:24/20TTRatchet and tool tightened band clampField of Search24/20R, Metal bands24/20EE, End-to-end integral band end connection24/20S, Spring closed band clamp24/20TTRatchet and tool tightened band clampExaminersPrimary: Brittain, James R.Attorney, Agent or FirmUS Patent References4987652Spring clampIssued on: 01/29/1991 Inventor: Spaulding Foreign Patent References
International ClassF16L 033/02Foreign Application Priority Data1993-05-19 FR |
